Fraction Representations, Reciprocal Guards, and Raw Scaling

This batch has passed Schema, deduplication, source-snapshot, and independent-answer recomputation checks; it is still not marked as human-reviewed.

This question bank has corresponding bilingual step-by-step derivations. Source candidate and English ai_candidate states are retained. AI review, finite computation and Lean formal proof are labelled separately.

batch-20261011-advance-20261015-r01-fraction-foundations · 2026-10-11 · 100 questions

This English edition is an AI candidate and does not yet have an OCME Atlas (GPT-6) Twin closure receipt.

1. True Fraction Sum versus Naive Representation Addition

Use legal integer fraction representations with nonzero original denominators; negative denominators are allowed. Representation and value remain distinct. a=1/2, b=1/-2. The naive candidate adds the original numerators and original denominators separately, before reduction. Give (true sum, is naive addition defined?, naive value or undefined, naive−true defect or undefined, is naive addition correct?).

View answer and explanation

(0/1, No, undefined, undefined, No)

Compute the true sum by common denominators; separately guard the original denominator sum before evaluating the naive candidate. Adding numerators and denominators separately is not fraction addition. The exact result, retaining the requested order, is (0/1, No, undefined, undefined, No).

Reviewed step-by-step derivation

Fraction · qf-density15-fraction-sum-naive-audit · candidate

2. True Fraction Sum versus Naive Representation Addition

Use legal integer fraction representations with nonzero original denominators; negative denominators are allowed. Representation and value remain distinct. a=1/2, b=-1/-2. The naive candidate adds the original numerators and original denominators separately, before reduction. Give (true sum, is naive addition defined?, naive value or undefined, naive−true defect or undefined, is naive addition correct?).

View answer and explanation

(1/1, No, undefined, undefined, No)

Compute the true sum by common denominators; separately guard the original denominator sum before evaluating the naive candidate. Adding numerators and denominators separately is not fraction addition. The exact result, retaining the requested order, is (1/1, No, undefined, undefined, No).

Reviewed step-by-step derivation

Fraction · qf-density15-fraction-sum-naive-audit · candidate

3. True Fraction Sum versus Naive Representation Addition

Use legal integer fraction representations with nonzero original denominators; negative denominators are allowed. Representation and value remain distinct. a=0/2, b=0/3. The naive candidate adds the original numerators and original denominators separately, before reduction. Give (true sum, is naive addition defined?, naive value or undefined, naive−true defect or undefined, is naive addition correct?).

View answer and explanation

(0/1, Yes, 0/1, 0/1, Yes)

Compute the true sum by common denominators; separately guard the original denominator sum before evaluating the naive candidate. Adding numerators and denominators separately is not fraction addition. The exact result, retaining the requested order, is (0/1, Yes, 0/1, 0/1, Yes).

Reviewed step-by-step derivation

Fraction · qf-density15-fraction-sum-naive-audit · candidate

4. True Fraction Sum versus Naive Representation Addition

Use legal integer fraction representations with nonzero original denominators; negative denominators are allowed. Representation and value remain distinct. a=1/2, b=1/4. The naive candidate adds the original numerators and original denominators separately, before reduction. Give (true sum, is naive addition defined?, naive value or undefined, naive−true defect or undefined, is naive addition correct?).

View answer and explanation

(3/4, Yes, 1/3, -5/12, No)

Compute the true sum by common denominators; separately guard the original denominator sum before evaluating the naive candidate. Adding numerators and denominators separately is not fraction addition. The exact result, retaining the requested order, is (3/4, Yes, 1/3, -5/12, No).

Reviewed step-by-step derivation

Fraction · qf-density15-fraction-sum-naive-audit · candidate

5. True Fraction Sum versus Naive Representation Addition

Use legal integer fraction representations with nonzero original denominators; negative denominators are allowed. Representation and value remain distinct. a=-8/2, b=1/3. The naive candidate adds the original numerators and original denominators separately, before reduction. Give (true sum, is naive addition defined?, naive value or undefined, naive−true defect or undefined, is naive addition correct?).

View answer and explanation

(-11/3, Yes, -7/5, 34/15, No)

Compute the true sum by common denominators; separately guard the original denominator sum before evaluating the naive candidate. Adding numerators and denominators separately is not fraction addition. The exact result, retaining the requested order, is (-11/3, Yes, -7/5, 34/15, No).

Reviewed step-by-step derivation

Fraction · qf-density15-fraction-sum-naive-audit · candidate

6. True Fraction Sum versus Naive Representation Addition

Use legal integer fraction representations with nonzero original denominators; negative denominators are allowed. Representation and value remain distinct. a=7/-2, b=1/3. The naive candidate adds the original numerators and original denominators separately, before reduction. Give (true sum, is naive addition defined?, naive value or undefined, naive−true defect or undefined, is naive addition correct?).

View answer and explanation

(-19/6, Yes, 8/1, 67/6, No)

Compute the true sum by common denominators; separately guard the original denominator sum before evaluating the naive candidate. Adding numerators and denominators separately is not fraction addition. The exact result, retaining the requested order, is (-19/6, Yes, 8/1, 67/6, No).

Reviewed step-by-step derivation

Fraction · qf-density15-fraction-sum-naive-audit · candidate

7. True Fraction Sum versus Naive Representation Addition

Use legal integer fraction representations with nonzero original denominators; negative denominators are allowed. Representation and value remain distinct. a=-6/2, b=1/3. The naive candidate adds the original numerators and original denominators separately, before reduction. Give (true sum, is naive addition defined?, naive value or undefined, naive−true defect or undefined, is naive addition correct?).

View answer and explanation

(-8/3, Yes, -1/1, 5/3, No)

Compute the true sum by common denominators; separately guard the original denominator sum before evaluating the naive candidate. Adding numerators and denominators separately is not fraction addition. The exact result, retaining the requested order, is (-8/3, Yes, -1/1, 5/3, No).

Reviewed step-by-step derivation

Fraction · qf-density15-fraction-sum-naive-audit · candidate

8. True Fraction Sum versus Naive Representation Addition

Use legal integer fraction representations with nonzero original denominators; negative denominators are allowed. Representation and value remain distinct. a=5/-2, b=1/3. The naive candidate adds the original numerators and original denominators separately, before reduction. Give (true sum, is naive addition defined?, naive value or undefined, naive−true defect or undefined, is naive addition correct?).

View answer and explanation

(-13/6, Yes, 6/1, 49/6, No)

Compute the true sum by common denominators; separately guard the original denominator sum before evaluating the naive candidate. Adding numerators and denominators separately is not fraction addition. The exact result, retaining the requested order, is (-13/6, Yes, 6/1, 49/6, No).

Reviewed step-by-step derivation

Fraction · qf-density15-fraction-sum-naive-audit · candidate

9. True Fraction Sum versus Naive Representation Addition

Use legal integer fraction representations with nonzero original denominators; negative denominators are allowed. Representation and value remain distinct. a=-4/2, b=1/3. The naive candidate adds the original numerators and original denominators separately, before reduction. Give (true sum, is naive addition defined?, naive value or undefined, naive−true defect or undefined, is naive addition correct?).

View answer and explanation

(-5/3, Yes, -3/5, 16/15, No)

Compute the true sum by common denominators; separately guard the original denominator sum before evaluating the naive candidate. Adding numerators and denominators separately is not fraction addition. The exact result, retaining the requested order, is (-5/3, Yes, -3/5, 16/15, No).

Reviewed step-by-step derivation

Fraction · qf-density15-fraction-sum-naive-audit · candidate

10. True Fraction Sum versus Naive Representation Addition

Use legal integer fraction representations with nonzero original denominators; negative denominators are allowed. Representation and value remain distinct. a=3/-2, b=1/3. The naive candidate adds the original numerators and original denominators separately, before reduction. Give (true sum, is naive addition defined?, naive value or undefined, naive−true defect or undefined, is naive addition correct?).

View answer and explanation

(-7/6, Yes, 4/1, 31/6, No)

Compute the true sum by common denominators; separately guard the original denominator sum before evaluating the naive candidate. Adding numerators and denominators separately is not fraction addition. The exact result, retaining the requested order, is (-7/6, Yes, 4/1, 31/6, No).

Reviewed step-by-step derivation

Fraction · qf-density15-fraction-sum-naive-audit · candidate

11. True Fraction Sum versus Naive Representation Addition

Use legal integer fraction representations with nonzero original denominators; negative denominators are allowed. Representation and value remain distinct. a=-2/2, b=1/3. The naive candidate adds the original numerators and original denominators separately, before reduction. Give (true sum, is naive addition defined?, naive value or undefined, naive−true defect or undefined, is naive addition correct?).

View answer and explanation

(-2/3, Yes, -1/5, 7/15, No)

Compute the true sum by common denominators; separately guard the original denominator sum before evaluating the naive candidate. Adding numerators and denominators separately is not fraction addition. The exact result, retaining the requested order, is (-2/3, Yes, -1/5, 7/15, No).

Reviewed step-by-step derivation

Fraction · qf-density15-fraction-sum-naive-audit · candidate

12. True Fraction Sum versus Naive Representation Addition

Use legal integer fraction representations with nonzero original denominators; negative denominators are allowed. Representation and value remain distinct. a=1/-2, b=1/3. The naive candidate adds the original numerators and original denominators separately, before reduction. Give (true sum, is naive addition defined?, naive value or undefined, naive−true defect or undefined, is naive addition correct?).

View answer and explanation

(-1/6, Yes, 2/1, 13/6, No)

Compute the true sum by common denominators; separately guard the original denominator sum before evaluating the naive candidate. Adding numerators and denominators separately is not fraction addition. The exact result, retaining the requested order, is (-1/6, Yes, 2/1, 13/6, No).

Reviewed step-by-step derivation

Fraction · qf-density15-fraction-sum-naive-audit · candidate

13. True Fraction Sum versus Naive Representation Addition

Use legal integer fraction representations with nonzero original denominators; negative denominators are allowed. Representation and value remain distinct. a=0/2, b=1/3. The naive candidate adds the original numerators and original denominators separately, before reduction. Give (true sum, is naive addition defined?, naive value or undefined, naive−true defect or undefined, is naive addition correct?).

View answer and explanation

(1/3, Yes, 1/5, -2/15, No)

Compute the true sum by common denominators; separately guard the original denominator sum before evaluating the naive candidate. Adding numerators and denominators separately is not fraction addition. The exact result, retaining the requested order, is (1/3, Yes, 1/5, -2/15, No).

Reviewed step-by-step derivation

Fraction · qf-density15-fraction-sum-naive-audit · candidate

14. True Fraction Sum versus Naive Representation Addition

Use legal integer fraction representations with nonzero original denominators; negative denominators are allowed. Representation and value remain distinct. a=-1/-2, b=1/3. The naive candidate adds the original numerators and original denominators separately, before reduction. Give (true sum, is naive addition defined?, naive value or undefined, naive−true defect or undefined, is naive addition correct?).

View answer and explanation

(5/6, Yes, 0/1, -5/6, No)

Compute the true sum by common denominators; separately guard the original denominator sum before evaluating the naive candidate. Adding numerators and denominators separately is not fraction addition. The exact result, retaining the requested order, is (5/6, Yes, 0/1, -5/6, No).

Reviewed step-by-step derivation

Fraction · qf-density15-fraction-sum-naive-audit · candidate

15. True Fraction Sum versus Naive Representation Addition

Use legal integer fraction representations with nonzero original denominators; negative denominators are allowed. Representation and value remain distinct. a=2/2, b=1/3. The naive candidate adds the original numerators and original denominators separately, before reduction. Give (true sum, is naive addition defined?, naive value or undefined, naive−true defect or undefined, is naive addition correct?).

View answer and explanation

(4/3, Yes, 3/5, -11/15, No)

Compute the true sum by common denominators; separately guard the original denominator sum before evaluating the naive candidate. Adding numerators and denominators separately is not fraction addition. The exact result, retaining the requested order, is (4/3, Yes, 3/5, -11/15, No).

Reviewed step-by-step derivation

Fraction · qf-density15-fraction-sum-naive-audit · candidate

16. True Fraction Sum versus Naive Representation Addition

Use legal integer fraction representations with nonzero original denominators; negative denominators are allowed. Representation and value remain distinct. a=-3/-2, b=1/3. The naive candidate adds the original numerators and original denominators separately, before reduction. Give (true sum, is naive addition defined?, naive value or undefined, naive−true defect or undefined, is naive addition correct?).

View answer and explanation

(11/6, Yes, -2/1, -23/6, No)

Compute the true sum by common denominators; separately guard the original denominator sum before evaluating the naive candidate. Adding numerators and denominators separately is not fraction addition. The exact result, retaining the requested order, is (11/6, Yes, -2/1, -23/6, No).

Reviewed step-by-step derivation

Fraction · qf-density15-fraction-sum-naive-audit · candidate

17. True Fraction Sum versus Naive Representation Addition

Use legal integer fraction representations with nonzero original denominators; negative denominators are allowed. Representation and value remain distinct. a=4/2, b=1/3. The naive candidate adds the original numerators and original denominators separately, before reduction. Give (true sum, is naive addition defined?, naive value or undefined, naive−true defect or undefined, is naive addition correct?).

View answer and explanation

(7/3, Yes, 1/1, -4/3, No)

Compute the true sum by common denominators; separately guard the original denominator sum before evaluating the naive candidate. Adding numerators and denominators separately is not fraction addition. The exact result, retaining the requested order, is (7/3, Yes, 1/1, -4/3, No).

Reviewed step-by-step derivation

Fraction · qf-density15-fraction-sum-naive-audit · candidate

18. True Fraction Sum versus Naive Representation Addition

Use legal integer fraction representations with nonzero original denominators; negative denominators are allowed. Representation and value remain distinct. a=-5/-2, b=1/3. The naive candidate adds the original numerators and original denominators separately, before reduction. Give (true sum, is naive addition defined?, naive value or undefined, naive−true defect or undefined, is naive addition correct?).

View answer and explanation

(17/6, Yes, -4/1, -41/6, No)

Compute the true sum by common denominators; separately guard the original denominator sum before evaluating the naive candidate. Adding numerators and denominators separately is not fraction addition. The exact result, retaining the requested order, is (17/6, Yes, -4/1, -41/6, No).

Reviewed step-by-step derivation

Fraction · qf-density15-fraction-sum-naive-audit · candidate

19. True Fraction Sum versus Naive Representation Addition

Use legal integer fraction representations with nonzero original denominators; negative denominators are allowed. Representation and value remain distinct. a=6/2, b=1/3. The naive candidate adds the original numerators and original denominators separately, before reduction. Give (true sum, is naive addition defined?, naive value or undefined, naive−true defect or undefined, is naive addition correct?).

View answer and explanation

(10/3, Yes, 7/5, -29/15, No)

Compute the true sum by common denominators; separately guard the original denominator sum before evaluating the naive candidate. Adding numerators and denominators separately is not fraction addition. The exact result, retaining the requested order, is (10/3, Yes, 7/5, -29/15, No).

Reviewed step-by-step derivation

Fraction · qf-density15-fraction-sum-naive-audit · candidate

20. True Fraction Sum versus Naive Representation Addition

Use legal integer fraction representations with nonzero original denominators; negative denominators are allowed. Representation and value remain distinct. a=-7/-2, b=1/3. The naive candidate adds the original numerators and original denominators separately, before reduction. Give (true sum, is naive addition defined?, naive value or undefined, naive−true defect or undefined, is naive addition correct?).

View answer and explanation

(23/6, Yes, -6/1, -59/6, No)

Compute the true sum by common denominators; separately guard the original denominator sum before evaluating the naive candidate. Adding numerators and denominators separately is not fraction addition. The exact result, retaining the requested order, is (23/6, Yes, -6/1, -59/6, No).

Reviewed step-by-step derivation

Fraction · qf-density15-fraction-sum-naive-audit · candidate

21. True Fraction Sum versus Naive Representation Addition

Use legal integer fraction representations with nonzero original denominators; negative denominators are allowed. Representation and value remain distinct. a=8/2, b=1/3. The naive candidate adds the original numerators and original denominators separately, before reduction. Give (true sum, is naive addition defined?, naive value or undefined, naive−true defect or undefined, is naive addition correct?).

View answer and explanation

(13/3, Yes, 9/5, -38/15, No)

Compute the true sum by common denominators; separately guard the original denominator sum before evaluating the naive candidate. Adding numerators and denominators separately is not fraction addition. The exact result, retaining the requested order, is (13/3, Yes, 9/5, -38/15, No).

Reviewed step-by-step derivation

Fraction · qf-density15-fraction-sum-naive-audit · candidate

22. True Fraction Sum versus Naive Representation Addition

Use legal integer fraction representations with nonzero original denominators; negative denominators are allowed. Representation and value remain distinct. a=-9/-2, b=1/3. The naive candidate adds the original numerators and original denominators separately, before reduction. Give (true sum, is naive addition defined?, naive value or undefined, naive−true defect or undefined, is naive addition correct?).

View answer and explanation

(29/6, Yes, -8/1, -77/6, No)

Compute the true sum by common denominators; separately guard the original denominator sum before evaluating the naive candidate. Adding numerators and denominators separately is not fraction addition. The exact result, retaining the requested order, is (29/6, Yes, -8/1, -77/6, No).

Reviewed step-by-step derivation

Fraction · qf-density15-fraction-sum-naive-audit · candidate

23. True Fraction Sum versus Naive Representation Addition

Use legal integer fraction representations with nonzero original denominators; negative denominators are allowed. Representation and value remain distinct. a=10/2, b=1/3. The naive candidate adds the original numerators and original denominators separately, before reduction. Give (true sum, is naive addition defined?, naive value or undefined, naive−true defect or undefined, is naive addition correct?).

View answer and explanation

(16/3, Yes, 11/5, -47/15, No)

Compute the true sum by common denominators; separately guard the original denominator sum before evaluating the naive candidate. Adding numerators and denominators separately is not fraction addition. The exact result, retaining the requested order, is (16/3, Yes, 11/5, -47/15, No).

Reviewed step-by-step derivation

Fraction · qf-density15-fraction-sum-naive-audit · candidate

24. True Fraction Sum versus Naive Representation Addition

Use legal integer fraction representations with nonzero original denominators; negative denominators are allowed. Representation and value remain distinct. a=-11/-2, b=1/3. The naive candidate adds the original numerators and original denominators separately, before reduction. Give (true sum, is naive addition defined?, naive value or undefined, naive−true defect or undefined, is naive addition correct?).

View answer and explanation

(35/6, Yes, -10/1, -95/6, No)

Compute the true sum by common denominators; separately guard the original denominator sum before evaluating the naive candidate. Adding numerators and denominators separately is not fraction addition. The exact result, retaining the requested order, is (35/6, Yes, -10/1, -95/6, No).

Reviewed step-by-step derivation

Fraction · qf-density15-fraction-sum-naive-audit · candidate

25. True Fraction Sum versus Naive Representation Addition

Use legal integer fraction representations with nonzero original denominators; negative denominators are allowed. Representation and value remain distinct. a=12/2, b=1/3. The naive candidate adds the original numerators and original denominators separately, before reduction. Give (true sum, is naive addition defined?, naive value or undefined, naive−true defect or undefined, is naive addition correct?).

View answer and explanation

(19/3, Yes, 13/5, -56/15, No)

Compute the true sum by common denominators; separately guard the original denominator sum before evaluating the naive candidate. Adding numerators and denominators separately is not fraction addition. The exact result, retaining the requested order, is (19/3, Yes, 13/5, -56/15, No).

Reviewed step-by-step derivation

Fraction · qf-density15-fraction-sum-naive-audit · candidate

26. Ordered Fraction Differences and Endpoint Check

Use legal integer fraction representations with nonzero original denominators; negative denominators are allowed. Representation and value remain distinct. Four ordered values=[0/1, 0/1, 0/1, 0/1]. Give (three following-minus-previous differences, their sum, last−first, are those last two results equal?); do not sort.

View answer and explanation

([0/1, 0/1, 0/1], 0/1, 0/1, Yes)

Subtract adjacent values in original order, add the differences, and independently compute the endpoint difference. Finite arithmetic is not a quotient well-definedness proof. The exact result, retaining the requested order, is ([0/1, 0/1, 0/1], 0/1, 0/1, Yes).

Reviewed step-by-step derivation

Fraction · qf-density15-fraction-adjacent-difference-chain · candidate

27. Ordered Fraction Differences and Endpoint Check

Use legal integer fraction representations with nonzero original denominators; negative denominators are allowed. Representation and value remain distinct. Four ordered values=[0/1, 1/1, 0/1, 1/1]. Give (three following-minus-previous differences, their sum, last−first, are those last two results equal?); do not sort.

View answer and explanation

([1/1, -1/1, 1/1], 1/1, 1/1, Yes)

Subtract adjacent values in original order, add the differences, and independently compute the endpoint difference. Finite arithmetic is not a quotient well-definedness proof. The exact result, retaining the requested order, is ([1/1, -1/1, 1/1], 1/1, 1/1, Yes).

Reviewed step-by-step derivation

Fraction · qf-density15-fraction-adjacent-difference-chain · candidate

28. Ordered Fraction Differences and Endpoint Check

Use legal integer fraction representations with nonzero original denominators; negative denominators are allowed. Representation and value remain distinct. Four ordered values=[-10/3, 0/1, 1/2, 3/2]. Give (three following-minus-previous differences, their sum, last−first, are those last two results equal?); do not sort.

View answer and explanation

([10/3, 1/2, 1/1], 29/6, 29/6, Yes)

Subtract adjacent values in original order, add the differences, and independently compute the endpoint difference. Finite arithmetic is not a quotient well-definedness proof. The exact result, retaining the requested order, is ([10/3, 1/2, 1/1], 29/6, 29/6, Yes).

Reviewed step-by-step derivation

Fraction · qf-density15-fraction-adjacent-difference-chain · candidate

29. Ordered Fraction Differences and Endpoint Check

Use legal integer fraction representations with nonzero original denominators; negative denominators are allowed. Representation and value remain distinct. Four ordered values=[9/-3, 0/1, 1/2, 4/2]. Give (three following-minus-previous differences, their sum, last−first, are those last two results equal?); do not sort.

View answer and explanation

([3/1, 1/2, 3/2], 5/1, 5/1, Yes)

Subtract adjacent values in original order, add the differences, and independently compute the endpoint difference. Finite arithmetic is not a quotient well-definedness proof. The exact result, retaining the requested order, is ([3/1, 1/2, 3/2], 5/1, 5/1, Yes).

Reviewed step-by-step derivation

Fraction · qf-density15-fraction-adjacent-difference-chain · candidate

30. Ordered Fraction Differences and Endpoint Check

Use legal integer fraction representations with nonzero original denominators; negative denominators are allowed. Representation and value remain distinct. Four ordered values=[-8/3, 0/1, 1/2, 5/2]. Give (three following-minus-previous differences, their sum, last−first, are those last two results equal?); do not sort.

View answer and explanation

([8/3, 1/2, 2/1], 31/6, 31/6, Yes)

Subtract adjacent values in original order, add the differences, and independently compute the endpoint difference. Finite arithmetic is not a quotient well-definedness proof. The exact result, retaining the requested order, is ([8/3, 1/2, 2/1], 31/6, 31/6, Yes).

Reviewed step-by-step derivation

Fraction · qf-density15-fraction-adjacent-difference-chain · candidate

31. Ordered Fraction Differences and Endpoint Check

Use legal integer fraction representations with nonzero original denominators; negative denominators are allowed. Representation and value remain distinct. Four ordered values=[7/-3, 0/1, 1/2, 6/2]. Give (three following-minus-previous differences, their sum, last−first, are those last two results equal?); do not sort.

View answer and explanation

([7/3, 1/2, 5/2], 16/3, 16/3, Yes)

Subtract adjacent values in original order, add the differences, and independently compute the endpoint difference. Finite arithmetic is not a quotient well-definedness proof. The exact result, retaining the requested order, is ([7/3, 1/2, 5/2], 16/3, 16/3, Yes).

Reviewed step-by-step derivation

Fraction · qf-density15-fraction-adjacent-difference-chain · candidate

32. Ordered Fraction Differences and Endpoint Check

Use legal integer fraction representations with nonzero original denominators; negative denominators are allowed. Representation and value remain distinct. Four ordered values=[-6/3, 0/1, 1/2, 7/2]. Give (three following-minus-previous differences, their sum, last−first, are those last two results equal?); do not sort.

View answer and explanation

([2/1, 1/2, 3/1], 11/2, 11/2, Yes)

Subtract adjacent values in original order, add the differences, and independently compute the endpoint difference. Finite arithmetic is not a quotient well-definedness proof. The exact result, retaining the requested order, is ([2/1, 1/2, 3/1], 11/2, 11/2, Yes).

Reviewed step-by-step derivation

Fraction · qf-density15-fraction-adjacent-difference-chain · candidate

33. Ordered Fraction Differences and Endpoint Check

Use legal integer fraction representations with nonzero original denominators; negative denominators are allowed. Representation and value remain distinct. Four ordered values=[5/-3, 0/1, 1/2, 8/2]. Give (three following-minus-previous differences, their sum, last−first, are those last two results equal?); do not sort.

View answer and explanation

([5/3, 1/2, 7/2], 17/3, 17/3, Yes)

Subtract adjacent values in original order, add the differences, and independently compute the endpoint difference. Finite arithmetic is not a quotient well-definedness proof. The exact result, retaining the requested order, is ([5/3, 1/2, 7/2], 17/3, 17/3, Yes).

Reviewed step-by-step derivation

Fraction · qf-density15-fraction-adjacent-difference-chain · candidate

34. Ordered Fraction Differences and Endpoint Check

Use legal integer fraction representations with nonzero original denominators; negative denominators are allowed. Representation and value remain distinct. Four ordered values=[-4/3, 0/1, 1/2, 9/2]. Give (three following-minus-previous differences, their sum, last−first, are those last two results equal?); do not sort.

View answer and explanation

([4/3, 1/2, 4/1], 35/6, 35/6, Yes)

Subtract adjacent values in original order, add the differences, and independently compute the endpoint difference. Finite arithmetic is not a quotient well-definedness proof. The exact result, retaining the requested order, is ([4/3, 1/2, 4/1], 35/6, 35/6, Yes).

Reviewed step-by-step derivation

Fraction · qf-density15-fraction-adjacent-difference-chain · candidate

35. Ordered Fraction Differences and Endpoint Check

Use legal integer fraction representations with nonzero original denominators; negative denominators are allowed. Representation and value remain distinct. Four ordered values=[3/-3, 0/1, 1/2, 10/2]. Give (three following-minus-previous differences, their sum, last−first, are those last two results equal?); do not sort.

View answer and explanation

([1/1, 1/2, 9/2], 6/1, 6/1, Yes)

Subtract adjacent values in original order, add the differences, and independently compute the endpoint difference. Finite arithmetic is not a quotient well-definedness proof. The exact result, retaining the requested order, is ([1/1, 1/2, 9/2], 6/1, 6/1, Yes).

Reviewed step-by-step derivation

Fraction · qf-density15-fraction-adjacent-difference-chain · candidate

36. Ordered Fraction Differences and Endpoint Check

Use legal integer fraction representations with nonzero original denominators; negative denominators are allowed. Representation and value remain distinct. Four ordered values=[-2/3, 0/1, 1/2, 11/2]. Give (three following-minus-previous differences, their sum, last−first, are those last two results equal?); do not sort.

View answer and explanation

([2/3, 1/2, 5/1], 37/6, 37/6, Yes)

Subtract adjacent values in original order, add the differences, and independently compute the endpoint difference. Finite arithmetic is not a quotient well-definedness proof. The exact result, retaining the requested order, is ([2/3, 1/2, 5/1], 37/6, 37/6, Yes).

Reviewed step-by-step derivation

Fraction · qf-density15-fraction-adjacent-difference-chain · candidate

37. Ordered Fraction Differences and Endpoint Check

Use legal integer fraction representations with nonzero original denominators; negative denominators are allowed. Representation and value remain distinct. Four ordered values=[1/-3, 0/1, 1/2, 12/2]. Give (three following-minus-previous differences, their sum, last−first, are those last two results equal?); do not sort.

View answer and explanation

([1/3, 1/2, 11/2], 19/3, 19/3, Yes)

Subtract adjacent values in original order, add the differences, and independently compute the endpoint difference. Finite arithmetic is not a quotient well-definedness proof. The exact result, retaining the requested order, is ([1/3, 1/2, 11/2], 19/3, 19/3, Yes).

Reviewed step-by-step derivation

Fraction · qf-density15-fraction-adjacent-difference-chain · candidate

38. Ordered Fraction Differences and Endpoint Check

Use legal integer fraction representations with nonzero original denominators; negative denominators are allowed. Representation and value remain distinct. Four ordered values=[0/3, 0/1, 1/2, 13/2]. Give (three following-minus-previous differences, their sum, last−first, are those last two results equal?); do not sort.

View answer and explanation

([0/1, 1/2, 6/1], 13/2, 13/2, Yes)

Subtract adjacent values in original order, add the differences, and independently compute the endpoint difference. Finite arithmetic is not a quotient well-definedness proof. The exact result, retaining the requested order, is ([0/1, 1/2, 6/1], 13/2, 13/2, Yes).

Reviewed step-by-step derivation

Fraction · qf-density15-fraction-adjacent-difference-chain · candidate

39. Ordered Fraction Differences and Endpoint Check

Use legal integer fraction representations with nonzero original denominators; negative denominators are allowed. Representation and value remain distinct. Four ordered values=[-1/-3, 0/1, 1/2, 14/2]. Give (three following-minus-previous differences, their sum, last−first, are those last two results equal?); do not sort.

View answer and explanation

([-1/3, 1/2, 13/2], 20/3, 20/3, Yes)

Subtract adjacent values in original order, add the differences, and independently compute the endpoint difference. Finite arithmetic is not a quotient well-definedness proof. The exact result, retaining the requested order, is ([-1/3, 1/2, 13/2], 20/3, 20/3, Yes).

Reviewed step-by-step derivation

Fraction · qf-density15-fraction-adjacent-difference-chain · candidate

40. Ordered Fraction Differences and Endpoint Check

Use legal integer fraction representations with nonzero original denominators; negative denominators are allowed. Representation and value remain distinct. Four ordered values=[2/3, 0/1, 1/2, 15/2]. Give (three following-minus-previous differences, their sum, last−first, are those last two results equal?); do not sort.

View answer and explanation

([-2/3, 1/2, 7/1], 41/6, 41/6, Yes)

Subtract adjacent values in original order, add the differences, and independently compute the endpoint difference. Finite arithmetic is not a quotient well-definedness proof. The exact result, retaining the requested order, is ([-2/3, 1/2, 7/1], 41/6, 41/6, Yes).

Reviewed step-by-step derivation

Fraction · qf-density15-fraction-adjacent-difference-chain · candidate

41. Ordered Fraction Differences and Endpoint Check

Use legal integer fraction representations with nonzero original denominators; negative denominators are allowed. Representation and value remain distinct. Four ordered values=[-3/-3, 0/1, 1/2, 16/2]. Give (three following-minus-previous differences, their sum, last−first, are those last two results equal?); do not sort.

View answer and explanation

([-1/1, 1/2, 15/2], 7/1, 7/1, Yes)

Subtract adjacent values in original order, add the differences, and independently compute the endpoint difference. Finite arithmetic is not a quotient well-definedness proof. The exact result, retaining the requested order, is ([-1/1, 1/2, 15/2], 7/1, 7/1, Yes).

Reviewed step-by-step derivation

Fraction · qf-density15-fraction-adjacent-difference-chain · candidate

42. Ordered Fraction Differences and Endpoint Check

Use legal integer fraction representations with nonzero original denominators; negative denominators are allowed. Representation and value remain distinct. Four ordered values=[4/3, 0/1, 1/2, 17/2]. Give (three following-minus-previous differences, their sum, last−first, are those last two results equal?); do not sort.

View answer and explanation

([-4/3, 1/2, 8/1], 43/6, 43/6, Yes)

Subtract adjacent values in original order, add the differences, and independently compute the endpoint difference. Finite arithmetic is not a quotient well-definedness proof. The exact result, retaining the requested order, is ([-4/3, 1/2, 8/1], 43/6, 43/6, Yes).

Reviewed step-by-step derivation

Fraction · qf-density15-fraction-adjacent-difference-chain · candidate

43. Ordered Fraction Differences and Endpoint Check

Use legal integer fraction representations with nonzero original denominators; negative denominators are allowed. Representation and value remain distinct. Four ordered values=[-5/-3, 0/1, 1/2, 18/2]. Give (three following-minus-previous differences, their sum, last−first, are those last two results equal?); do not sort.

View answer and explanation

([-5/3, 1/2, 17/2], 22/3, 22/3, Yes)

Subtract adjacent values in original order, add the differences, and independently compute the endpoint difference. Finite arithmetic is not a quotient well-definedness proof. The exact result, retaining the requested order, is ([-5/3, 1/2, 17/2], 22/3, 22/3, Yes).

Reviewed step-by-step derivation

Fraction · qf-density15-fraction-adjacent-difference-chain · candidate

44. Ordered Fraction Differences and Endpoint Check

Use legal integer fraction representations with nonzero original denominators; negative denominators are allowed. Representation and value remain distinct. Four ordered values=[6/3, 0/1, 1/2, 19/2]. Give (three following-minus-previous differences, their sum, last−first, are those last two results equal?); do not sort.

View answer and explanation

([-2/1, 1/2, 9/1], 15/2, 15/2, Yes)

Subtract adjacent values in original order, add the differences, and independently compute the endpoint difference. Finite arithmetic is not a quotient well-definedness proof. The exact result, retaining the requested order, is ([-2/1, 1/2, 9/1], 15/2, 15/2, Yes).

Reviewed step-by-step derivation

Fraction · qf-density15-fraction-adjacent-difference-chain · candidate

45. Ordered Fraction Differences and Endpoint Check

Use legal integer fraction representations with nonzero original denominators; negative denominators are allowed. Representation and value remain distinct. Four ordered values=[-7/-3, 0/1, 1/2, 20/2]. Give (three following-minus-previous differences, their sum, last−first, are those last two results equal?); do not sort.

View answer and explanation

([-7/3, 1/2, 19/2], 23/3, 23/3, Yes)

Subtract adjacent values in original order, add the differences, and independently compute the endpoint difference. Finite arithmetic is not a quotient well-definedness proof. The exact result, retaining the requested order, is ([-7/3, 1/2, 19/2], 23/3, 23/3, Yes).

Reviewed step-by-step derivation

Fraction · qf-density15-fraction-adjacent-difference-chain · candidate

46. Ordered Fraction Differences and Endpoint Check

Use legal integer fraction representations with nonzero original denominators; negative denominators are allowed. Representation and value remain distinct. Four ordered values=[8/3, 0/1, 1/2, 21/2]. Give (three following-minus-previous differences, their sum, last−first, are those last two results equal?); do not sort.

View answer and explanation

([-8/3, 1/2, 10/1], 47/6, 47/6, Yes)

Subtract adjacent values in original order, add the differences, and independently compute the endpoint difference. Finite arithmetic is not a quotient well-definedness proof. The exact result, retaining the requested order, is ([-8/3, 1/2, 10/1], 47/6, 47/6, Yes).

Reviewed step-by-step derivation

Fraction · qf-density15-fraction-adjacent-difference-chain · candidate

47. Ordered Fraction Differences and Endpoint Check

Use legal integer fraction representations with nonzero original denominators; negative denominators are allowed. Representation and value remain distinct. Four ordered values=[-9/-3, 0/1, 1/2, 22/2]. Give (three following-minus-previous differences, their sum, last−first, are those last two results equal?); do not sort.

View answer and explanation

([-3/1, 1/2, 21/2], 8/1, 8/1, Yes)

Subtract adjacent values in original order, add the differences, and independently compute the endpoint difference. Finite arithmetic is not a quotient well-definedness proof. The exact result, retaining the requested order, is ([-3/1, 1/2, 21/2], 8/1, 8/1, Yes).

Reviewed step-by-step derivation

Fraction · qf-density15-fraction-adjacent-difference-chain · candidate

48. Ordered Fraction Differences and Endpoint Check

Use legal integer fraction representations with nonzero original denominators; negative denominators are allowed. Representation and value remain distinct. Four ordered values=[10/3, 0/1, 1/2, 23/2]. Give (three following-minus-previous differences, their sum, last−first, are those last two results equal?); do not sort.

View answer and explanation

([-10/3, 1/2, 11/1], 49/6, 49/6, Yes)

Subtract adjacent values in original order, add the differences, and independently compute the endpoint difference. Finite arithmetic is not a quotient well-definedness proof. The exact result, retaining the requested order, is ([-10/3, 1/2, 11/1], 49/6, 49/6, Yes).

Reviewed step-by-step derivation

Fraction · qf-density15-fraction-adjacent-difference-chain · candidate

49. Ordered Fraction Differences and Endpoint Check

Use legal integer fraction representations with nonzero original denominators; negative denominators are allowed. Representation and value remain distinct. Four ordered values=[-11/-3, 0/1, 1/2, 24/2]. Give (three following-minus-previous differences, their sum, last−first, are those last two results equal?); do not sort.

View answer and explanation

([-11/3, 1/2, 23/2], 25/3, 25/3, Yes)

Subtract adjacent values in original order, add the differences, and independently compute the endpoint difference. Finite arithmetic is not a quotient well-definedness proof. The exact result, retaining the requested order, is ([-11/3, 1/2, 23/2], 25/3, 25/3, Yes).

Reviewed step-by-step derivation

Fraction · qf-density15-fraction-adjacent-difference-chain · candidate

50. Ordered Fraction Differences and Endpoint Check

Use legal integer fraction representations with nonzero original denominators; negative denominators are allowed. Representation and value remain distinct. Four ordered values=[12/3, 0/1, 1/2, 25/2]. Give (three following-minus-previous differences, their sum, last−first, are those last two results equal?); do not sort.

View answer and explanation

([-4/1, 1/2, 12/1], 17/2, 17/2, Yes)

Subtract adjacent values in original order, add the differences, and independently compute the endpoint difference. Finite arithmetic is not a quotient well-definedness proof. The exact result, retaining the requested order, is ([-4/1, 1/2, 12/1], 17/2, 17/2, Yes).

Reviewed step-by-step derivation

Fraction · qf-density15-fraction-adjacent-difference-chain · candidate

51. Fraction Product and Two Reciprocal Guards

Use legal integer fraction representations with nonzero original denominators; negative denominators are allowed. Representation and value remain distinct. a=0/-2, b=0/3. Give (product, nonzero eligibility list for a and b separately, their reciprocals or undefined, reciprocal product or undefined).

View answer and explanation

(0/1, [No, No], [undefined, undefined], undefined)

Check each operand’s value for zero before taking its reciprocal; exchange normalized numerator/denominator only for a nonzero value. The exact result, retaining the requested order, is (0/1, [No, No], [undefined, undefined], undefined).

Reviewed step-by-step derivation

Fraction · qf-density15-fraction-inverse-pair-guard · candidate

52. Fraction Product and Two Reciprocal Guards

Use legal integer fraction representations with nonzero original denominators; negative denominators are allowed. Representation and value remain distinct. a=0/1, b=2/3. Give (product, nonzero eligibility list for a and b separately, their reciprocals or undefined, reciprocal product or undefined).

View answer and explanation

(0/1, [No, Yes], [undefined, 3/2], undefined)

Check each operand’s value for zero before taking its reciprocal; exchange normalized numerator/denominator only for a nonzero value. The exact result, retaining the requested order, is (0/1, [No, Yes], [undefined, 3/2], undefined).

Reviewed step-by-step derivation

Fraction · qf-density15-fraction-inverse-pair-guard · candidate

53. Fraction Product and Two Reciprocal Guards

Use legal integer fraction representations with nonzero original denominators; negative denominators are allowed. Representation and value remain distinct. a=-1/2, b=0/-5. Give (product, nonzero eligibility list for a and b separately, their reciprocals or undefined, reciprocal product or undefined).

View answer and explanation

(0/1, [Yes, No], [-2/1, undefined], undefined)

Check each operand’s value for zero before taking its reciprocal; exchange normalized numerator/denominator only for a nonzero value. The exact result, retaining the requested order, is (0/1, [Yes, No], [-2/1, undefined], undefined).

Reviewed step-by-step derivation

Fraction · qf-density15-fraction-inverse-pair-guard · candidate

54. Fraction Product and Two Reciprocal Guards

Use legal integer fraction representations with nonzero original denominators; negative denominators are allowed. Representation and value remain distinct. a=-9/3, b=2/-3. Give (product, nonzero eligibility list for a and b separately, their reciprocals or undefined, reciprocal product or undefined).

View answer and explanation

(2/1, [Yes, Yes], [-1/3, -3/2], 1/2)

Check each operand’s value for zero before taking its reciprocal; exchange normalized numerator/denominator only for a nonzero value. The exact result, retaining the requested order, is (2/1, [Yes, Yes], [-1/3, -3/2], 1/2).

Reviewed step-by-step derivation

Fraction · qf-density15-fraction-inverse-pair-guard · candidate

55. Fraction Product and Two Reciprocal Guards

Use legal integer fraction representations with nonzero original denominators; negative denominators are allowed. Representation and value remain distinct. a=-8/3, b=2/-3. Give (product, nonzero eligibility list for a and b separately, their reciprocals or undefined, reciprocal product or undefined).

View answer and explanation

(16/9, [Yes, Yes], [-3/8, -3/2], 9/16)

Check each operand’s value for zero before taking its reciprocal; exchange normalized numerator/denominator only for a nonzero value. The exact result, retaining the requested order, is (16/9, [Yes, Yes], [-3/8, -3/2], 9/16).

Reviewed step-by-step derivation

Fraction · qf-density15-fraction-inverse-pair-guard · candidate

56. Fraction Product and Two Reciprocal Guards

Use legal integer fraction representations with nonzero original denominators; negative denominators are allowed. Representation and value remain distinct. a=-7/3, b=2/-3. Give (product, nonzero eligibility list for a and b separately, their reciprocals or undefined, reciprocal product or undefined).

View answer and explanation

(14/9, [Yes, Yes], [-3/7, -3/2], 9/14)

Check each operand’s value for zero before taking its reciprocal; exchange normalized numerator/denominator only for a nonzero value. The exact result, retaining the requested order, is (14/9, [Yes, Yes], [-3/7, -3/2], 9/14).

Reviewed step-by-step derivation

Fraction · qf-density15-fraction-inverse-pair-guard · candidate

57. Fraction Product and Two Reciprocal Guards

Use legal integer fraction representations with nonzero original denominators; negative denominators are allowed. Representation and value remain distinct. a=-6/3, b=2/-3. Give (product, nonzero eligibility list for a and b separately, their reciprocals or undefined, reciprocal product or undefined).

View answer and explanation

(4/3, [Yes, Yes], [-1/2, -3/2], 3/4)

Check each operand’s value for zero before taking its reciprocal; exchange normalized numerator/denominator only for a nonzero value. The exact result, retaining the requested order, is (4/3, [Yes, Yes], [-1/2, -3/2], 3/4).

Reviewed step-by-step derivation

Fraction · qf-density15-fraction-inverse-pair-guard · candidate

58. Fraction Product and Two Reciprocal Guards

Use legal integer fraction representations with nonzero original denominators; negative denominators are allowed. Representation and value remain distinct. a=-5/3, b=2/-3. Give (product, nonzero eligibility list for a and b separately, their reciprocals or undefined, reciprocal product or undefined).

View answer and explanation

(10/9, [Yes, Yes], [-3/5, -3/2], 9/10)

Check each operand’s value for zero before taking its reciprocal; exchange normalized numerator/denominator only for a nonzero value. The exact result, retaining the requested order, is (10/9, [Yes, Yes], [-3/5, -3/2], 9/10).

Reviewed step-by-step derivation

Fraction · qf-density15-fraction-inverse-pair-guard · candidate

59. Fraction Product and Two Reciprocal Guards

Use legal integer fraction representations with nonzero original denominators; negative denominators are allowed. Representation and value remain distinct. a=-4/3, b=2/-3. Give (product, nonzero eligibility list for a and b separately, their reciprocals or undefined, reciprocal product or undefined).

View answer and explanation

(8/9, [Yes, Yes], [-3/4, -3/2], 9/8)

Check each operand’s value for zero before taking its reciprocal; exchange normalized numerator/denominator only for a nonzero value. The exact result, retaining the requested order, is (8/9, [Yes, Yes], [-3/4, -3/2], 9/8).

Reviewed step-by-step derivation

Fraction · qf-density15-fraction-inverse-pair-guard · candidate

60. Fraction Product and Two Reciprocal Guards

Use legal integer fraction representations with nonzero original denominators; negative denominators are allowed. Representation and value remain distinct. a=-3/3, b=2/-3. Give (product, nonzero eligibility list for a and b separately, their reciprocals or undefined, reciprocal product or undefined).

View answer and explanation

(2/3, [Yes, Yes], [-1/1, -3/2], 3/2)

Check each operand’s value for zero before taking its reciprocal; exchange normalized numerator/denominator only for a nonzero value. The exact result, retaining the requested order, is (2/3, [Yes, Yes], [-1/1, -3/2], 3/2).

Reviewed step-by-step derivation

Fraction · qf-density15-fraction-inverse-pair-guard · candidate

61. Fraction Product and Two Reciprocal Guards

Use legal integer fraction representations with nonzero original denominators; negative denominators are allowed. Representation and value remain distinct. a=-2/3, b=2/-3. Give (product, nonzero eligibility list for a and b separately, their reciprocals or undefined, reciprocal product or undefined).

View answer and explanation

(4/9, [Yes, Yes], [-3/2, -3/2], 9/4)

Check each operand’s value for zero before taking its reciprocal; exchange normalized numerator/denominator only for a nonzero value. The exact result, retaining the requested order, is (4/9, [Yes, Yes], [-3/2, -3/2], 9/4).

Reviewed step-by-step derivation

Fraction · qf-density15-fraction-inverse-pair-guard · candidate

62. Fraction Product and Two Reciprocal Guards

Use legal integer fraction representations with nonzero original denominators; negative denominators are allowed. Representation and value remain distinct. a=-1/3, b=2/-3. Give (product, nonzero eligibility list for a and b separately, their reciprocals or undefined, reciprocal product or undefined).

View answer and explanation

(2/9, [Yes, Yes], [-3/1, -3/2], 9/2)

Check each operand’s value for zero before taking its reciprocal; exchange normalized numerator/denominator only for a nonzero value. The exact result, retaining the requested order, is (2/9, [Yes, Yes], [-3/1, -3/2], 9/2).

Reviewed step-by-step derivation

Fraction · qf-density15-fraction-inverse-pair-guard · candidate

63. Fraction Product and Two Reciprocal Guards

Use legal integer fraction representations with nonzero original denominators; negative denominators are allowed. Representation and value remain distinct. a=0/3, b=2/-3. Give (product, nonzero eligibility list for a and b separately, their reciprocals or undefined, reciprocal product or undefined).

View answer and explanation

(0/1, [No, Yes], [undefined, -3/2], undefined)

Check each operand’s value for zero before taking its reciprocal; exchange normalized numerator/denominator only for a nonzero value. The exact result, retaining the requested order, is (0/1, [No, Yes], [undefined, -3/2], undefined).

Reviewed step-by-step derivation

Fraction · qf-density15-fraction-inverse-pair-guard · candidate

64. Fraction Product and Two Reciprocal Guards

Use legal integer fraction representations with nonzero original denominators; negative denominators are allowed. Representation and value remain distinct. a=1/3, b=2/-3. Give (product, nonzero eligibility list for a and b separately, their reciprocals or undefined, reciprocal product or undefined).

View answer and explanation

(-2/9, [Yes, Yes], [3/1, -3/2], -9/2)

Check each operand’s value for zero before taking its reciprocal; exchange normalized numerator/denominator only for a nonzero value. The exact result, retaining the requested order, is (-2/9, [Yes, Yes], [3/1, -3/2], -9/2).

Reviewed step-by-step derivation

Fraction · qf-density15-fraction-inverse-pair-guard · candidate

65. Fraction Product and Two Reciprocal Guards

Use legal integer fraction representations with nonzero original denominators; negative denominators are allowed. Representation and value remain distinct. a=2/3, b=2/-3. Give (product, nonzero eligibility list for a and b separately, their reciprocals or undefined, reciprocal product or undefined).

View answer and explanation

(-4/9, [Yes, Yes], [3/2, -3/2], -9/4)

Check each operand’s value for zero before taking its reciprocal; exchange normalized numerator/denominator only for a nonzero value. The exact result, retaining the requested order, is (-4/9, [Yes, Yes], [3/2, -3/2], -9/4).

Reviewed step-by-step derivation

Fraction · qf-density15-fraction-inverse-pair-guard · candidate

66. Fraction Product and Two Reciprocal Guards

Use legal integer fraction representations with nonzero original denominators; negative denominators are allowed. Representation and value remain distinct. a=3/3, b=2/-3. Give (product, nonzero eligibility list for a and b separately, their reciprocals or undefined, reciprocal product or undefined).

View answer and explanation

(-2/3, [Yes, Yes], [1/1, -3/2], -3/2)

Check each operand’s value for zero before taking its reciprocal; exchange normalized numerator/denominator only for a nonzero value. The exact result, retaining the requested order, is (-2/3, [Yes, Yes], [1/1, -3/2], -3/2).

Reviewed step-by-step derivation

Fraction · qf-density15-fraction-inverse-pair-guard · candidate

67. Fraction Product and Two Reciprocal Guards

Use legal integer fraction representations with nonzero original denominators; negative denominators are allowed. Representation and value remain distinct. a=4/3, b=2/-3. Give (product, nonzero eligibility list for a and b separately, their reciprocals or undefined, reciprocal product or undefined).

View answer and explanation

(-8/9, [Yes, Yes], [3/4, -3/2], -9/8)

Check each operand’s value for zero before taking its reciprocal; exchange normalized numerator/denominator only for a nonzero value. The exact result, retaining the requested order, is (-8/9, [Yes, Yes], [3/4, -3/2], -9/8).

Reviewed step-by-step derivation

Fraction · qf-density15-fraction-inverse-pair-guard · candidate

68. Fraction Product and Two Reciprocal Guards

Use legal integer fraction representations with nonzero original denominators; negative denominators are allowed. Representation and value remain distinct. a=5/3, b=2/-3. Give (product, nonzero eligibility list for a and b separately, their reciprocals or undefined, reciprocal product or undefined).

View answer and explanation

(-10/9, [Yes, Yes], [3/5, -3/2], -9/10)

Check each operand’s value for zero before taking its reciprocal; exchange normalized numerator/denominator only for a nonzero value. The exact result, retaining the requested order, is (-10/9, [Yes, Yes], [3/5, -3/2], -9/10).

Reviewed step-by-step derivation

Fraction · qf-density15-fraction-inverse-pair-guard · candidate

69. Fraction Product and Two Reciprocal Guards

Use legal integer fraction representations with nonzero original denominators; negative denominators are allowed. Representation and value remain distinct. a=6/3, b=2/-3. Give (product, nonzero eligibility list for a and b separately, their reciprocals or undefined, reciprocal product or undefined).

View answer and explanation

(-4/3, [Yes, Yes], [1/2, -3/2], -3/4)

Check each operand’s value for zero before taking its reciprocal; exchange normalized numerator/denominator only for a nonzero value. The exact result, retaining the requested order, is (-4/3, [Yes, Yes], [1/2, -3/2], -3/4).

Reviewed step-by-step derivation

Fraction · qf-density15-fraction-inverse-pair-guard · candidate

70. Fraction Product and Two Reciprocal Guards

Use legal integer fraction representations with nonzero original denominators; negative denominators are allowed. Representation and value remain distinct. a=7/3, b=2/-3. Give (product, nonzero eligibility list for a and b separately, their reciprocals or undefined, reciprocal product or undefined).

View answer and explanation

(-14/9, [Yes, Yes], [3/7, -3/2], -9/14)

Check each operand’s value for zero before taking its reciprocal; exchange normalized numerator/denominator only for a nonzero value. The exact result, retaining the requested order, is (-14/9, [Yes, Yes], [3/7, -3/2], -9/14).

Reviewed step-by-step derivation

Fraction · qf-density15-fraction-inverse-pair-guard · candidate

71. Fraction Product and Two Reciprocal Guards

Use legal integer fraction representations with nonzero original denominators; negative denominators are allowed. Representation and value remain distinct. a=8/3, b=2/-3. Give (product, nonzero eligibility list for a and b separately, their reciprocals or undefined, reciprocal product or undefined).

View answer and explanation

(-16/9, [Yes, Yes], [3/8, -3/2], -9/16)

Check each operand’s value for zero before taking its reciprocal; exchange normalized numerator/denominator only for a nonzero value. The exact result, retaining the requested order, is (-16/9, [Yes, Yes], [3/8, -3/2], -9/16).

Reviewed step-by-step derivation

Fraction · qf-density15-fraction-inverse-pair-guard · candidate

72. Fraction Product and Two Reciprocal Guards

Use legal integer fraction representations with nonzero original denominators; negative denominators are allowed. Representation and value remain distinct. a=9/3, b=2/-3. Give (product, nonzero eligibility list for a and b separately, their reciprocals or undefined, reciprocal product or undefined).

View answer and explanation

(-2/1, [Yes, Yes], [1/3, -3/2], -1/2)

Check each operand’s value for zero before taking its reciprocal; exchange normalized numerator/denominator only for a nonzero value. The exact result, retaining the requested order, is (-2/1, [Yes, Yes], [1/3, -3/2], -1/2).

Reviewed step-by-step derivation

Fraction · qf-density15-fraction-inverse-pair-guard · candidate

73. Fraction Product and Two Reciprocal Guards

Use legal integer fraction representations with nonzero original denominators; negative denominators are allowed. Representation and value remain distinct. a=10/3, b=2/-3. Give (product, nonzero eligibility list for a and b separately, their reciprocals or undefined, reciprocal product or undefined).

View answer and explanation

(-20/9, [Yes, Yes], [3/10, -3/2], -9/20)

Check each operand’s value for zero before taking its reciprocal; exchange normalized numerator/denominator only for a nonzero value. The exact result, retaining the requested order, is (-20/9, [Yes, Yes], [3/10, -3/2], -9/20).

Reviewed step-by-step derivation

Fraction · qf-density15-fraction-inverse-pair-guard · candidate

74. Fraction Product and Two Reciprocal Guards

Use legal integer fraction representations with nonzero original denominators; negative denominators are allowed. Representation and value remain distinct. a=11/3, b=2/-3. Give (product, nonzero eligibility list for a and b separately, their reciprocals or undefined, reciprocal product or undefined).

View answer and explanation

(-22/9, [Yes, Yes], [3/11, -3/2], -9/22)

Check each operand’s value for zero before taking its reciprocal; exchange normalized numerator/denominator only for a nonzero value. The exact result, retaining the requested order, is (-22/9, [Yes, Yes], [3/11, -3/2], -9/22).

Reviewed step-by-step derivation

Fraction · qf-density15-fraction-inverse-pair-guard · candidate

75. Fraction Product and Two Reciprocal Guards

Use legal integer fraction representations with nonzero original denominators; negative denominators are allowed. Representation and value remain distinct. a=12/3, b=2/-3. Give (product, nonzero eligibility list for a and b separately, their reciprocals or undefined, reciprocal product or undefined).

View answer and explanation

(-8/3, [Yes, Yes], [1/4, -3/2], -3/8)

Check each operand’s value for zero before taking its reciprocal; exchange normalized numerator/denominator only for a nonzero value. The exact result, retaining the requested order, is (-8/3, [Yes, Yes], [1/4, -3/2], -3/8).

Reviewed step-by-step derivation

Fraction · qf-density15-fraction-inverse-pair-guard · candidate

76. Two Raw Scaled Fraction Representations

Use legal integer fraction representations with nonzero original denominators; negative denominators are allowed. Representation and value remain distinct. Original n=0, d=1; ordered scale factors [s,t]=[0,2]. Give (original value, raw [ns,ds] and [nt,dt], each representation’s eligibility, reduced values or undefined). Preserve the raw products using exact integer arithmetic.

View answer and explanation

(0/1, [[0, 0], [0, 2]], [No, Yes], [undefined, 0/1])

A nonzero scale preserves value; a zero scale creates 0/0, which is not a legal representation. Compute raw products before reducing legal representations. The exact result, retaining the requested order, is (0/1, [[0, 0], [0, 2]], [No, Yes], [undefined, 0/1]).

Reviewed step-by-step derivation

Fraction · qf-density15-fraction-two-scaled-representations · candidate

77. Two Raw Scaled Fraction Representations

Use legal integer fraction representations with nonzero original denominators; negative denominators are allowed. Representation and value remain distinct. Original n=2, d=-3; ordered scale factors [s,t]=[0,-1]. Give (original value, raw [ns,ds] and [nt,dt], each representation’s eligibility, reduced values or undefined). Preserve the raw products using exact integer arithmetic.

View answer and explanation

(-2/3, [[0, 0], [-2, 3]], [No, Yes], [undefined, -2/3])

A nonzero scale preserves value; a zero scale creates 0/0, which is not a legal representation. Compute raw products before reducing legal representations. The exact result, retaining the requested order, is (-2/3, [[0, 0], [-2, 3]], [No, Yes], [undefined, -2/3]).

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Fraction · qf-density15-fraction-two-scaled-representations · candidate

78. Two Raw Scaled Fraction Representations

Use legal integer fraction representations with nonzero original denominators; negative denominators are allowed. Representation and value remain distinct. Original n=1, d=2; ordered scale factors [s,t]=[1,0]. Give (original value, raw [ns,ds] and [nt,dt], each representation’s eligibility, reduced values or undefined). Preserve the raw products using exact integer arithmetic.

View answer and explanation

(1/2, [[1, 2], [0, 0]], [Yes, No], [1/2, undefined])

A nonzero scale preserves value; a zero scale creates 0/0, which is not a legal representation. Compute raw products before reducing legal representations. The exact result, retaining the requested order, is (1/2, [[1, 2], [0, 0]], [Yes, No], [1/2, undefined]).

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Fraction · qf-density15-fraction-two-scaled-representations · candidate

79. Two Raw Scaled Fraction Representations

Use legal integer fraction representations with nonzero original denominators; negative denominators are allowed. Representation and value remain distinct. Original n=9007199254740991, d=-7; ordered scale factors [s,t]=[9007199254740991,-2]. Give (original value, raw [ns,ds] and [nt,dt], each representation’s eligibility, reduced values or undefined). Preserve the raw products using exact integer arithmetic.

View answer and explanation

(-9007199254740991/7, [[81129638414606663681390495662081, -63050394783186937], [-18014398509481982, 14]], [Yes, Yes], [-9007199254740991/7, -9007199254740991/7])

A nonzero scale preserves value; a zero scale creates 0/0, which is not a legal representation. Compute raw products before reducing legal representations. The exact result, retaining the requested order, is (-9007199254740991/7, [[81129638414606663681390495662081, -63050394783186937], [-18014398509481982, 14]], [Yes, Yes], [-9007199254740991/7, -9007199254740991/7]).

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Fraction · qf-density15-fraction-two-scaled-representations · candidate

80. Two Raw Scaled Fraction Representations

Use legal integer fraction representations with nonzero original denominators; negative denominators are allowed. Representation and value remain distinct. Original n=-8, d=2; ordered scale factors [s,t]=[2,-1]. Give (original value, raw [ns,ds] and [nt,dt], each representation’s eligibility, reduced values or undefined). Preserve the raw products using exact integer arithmetic.

View answer and explanation

(-4/1, [[-16, 4], [8, -2]], [Yes, Yes], [-4/1, -4/1])

A nonzero scale preserves value; a zero scale creates 0/0, which is not a legal representation. Compute raw products before reducing legal representations. The exact result, retaining the requested order, is (-4/1, [[-16, 4], [8, -2]], [Yes, Yes], [-4/1, -4/1]).

Reviewed step-by-step derivation

Fraction · qf-density15-fraction-two-scaled-representations · candidate

81. Two Raw Scaled Fraction Representations

Use legal integer fraction representations with nonzero original denominators; negative denominators are allowed. Representation and value remain distinct. Original n=-7, d=-3; ordered scale factors [s,t]=[2,-1]. Give (original value, raw [ns,ds] and [nt,dt], each representation’s eligibility, reduced values or undefined). Preserve the raw products using exact integer arithmetic.

View answer and explanation

(7/3, [[-14, -6], [7, 3]], [Yes, Yes], [7/3, 7/3])

A nonzero scale preserves value; a zero scale creates 0/0, which is not a legal representation. Compute raw products before reducing legal representations. The exact result, retaining the requested order, is (7/3, [[-14, -6], [7, 3]], [Yes, Yes], [7/3, 7/3]).

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Fraction · qf-density15-fraction-two-scaled-representations · candidate

82. Two Raw Scaled Fraction Representations

Use legal integer fraction representations with nonzero original denominators; negative denominators are allowed. Representation and value remain distinct. Original n=-6, d=2; ordered scale factors [s,t]=[2,-1]. Give (original value, raw [ns,ds] and [nt,dt], each representation’s eligibility, reduced values or undefined). Preserve the raw products using exact integer arithmetic.

View answer and explanation

(-3/1, [[-12, 4], [6, -2]], [Yes, Yes], [-3/1, -3/1])

A nonzero scale preserves value; a zero scale creates 0/0, which is not a legal representation. Compute raw products before reducing legal representations. The exact result, retaining the requested order, is (-3/1, [[-12, 4], [6, -2]], [Yes, Yes], [-3/1, -3/1]).

Reviewed step-by-step derivation

Fraction · qf-density15-fraction-two-scaled-representations · candidate

83. Two Raw Scaled Fraction Representations

Use legal integer fraction representations with nonzero original denominators; negative denominators are allowed. Representation and value remain distinct. Original n=-5, d=-3; ordered scale factors [s,t]=[2,-1]. Give (original value, raw [ns,ds] and [nt,dt], each representation’s eligibility, reduced values or undefined). Preserve the raw products using exact integer arithmetic.

View answer and explanation

(5/3, [[-10, -6], [5, 3]], [Yes, Yes], [5/3, 5/3])

A nonzero scale preserves value; a zero scale creates 0/0, which is not a legal representation. Compute raw products before reducing legal representations. The exact result, retaining the requested order, is (5/3, [[-10, -6], [5, 3]], [Yes, Yes], [5/3, 5/3]).

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Fraction · qf-density15-fraction-two-scaled-representations · candidate

84. Two Raw Scaled Fraction Representations

Use legal integer fraction representations with nonzero original denominators; negative denominators are allowed. Representation and value remain distinct. Original n=-4, d=2; ordered scale factors [s,t]=[2,-1]. Give (original value, raw [ns,ds] and [nt,dt], each representation’s eligibility, reduced values or undefined). Preserve the raw products using exact integer arithmetic.

View answer and explanation

(-2/1, [[-8, 4], [4, -2]], [Yes, Yes], [-2/1, -2/1])

A nonzero scale preserves value; a zero scale creates 0/0, which is not a legal representation. Compute raw products before reducing legal representations. The exact result, retaining the requested order, is (-2/1, [[-8, 4], [4, -2]], [Yes, Yes], [-2/1, -2/1]).

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Fraction · qf-density15-fraction-two-scaled-representations · candidate

85. Two Raw Scaled Fraction Representations

Use legal integer fraction representations with nonzero original denominators; negative denominators are allowed. Representation and value remain distinct. Original n=-3, d=-3; ordered scale factors [s,t]=[2,-1]. Give (original value, raw [ns,ds] and [nt,dt], each representation’s eligibility, reduced values or undefined). Preserve the raw products using exact integer arithmetic.

View answer and explanation

(1/1, [[-6, -6], [3, 3]], [Yes, Yes], [1/1, 1/1])

A nonzero scale preserves value; a zero scale creates 0/0, which is not a legal representation. Compute raw products before reducing legal representations. The exact result, retaining the requested order, is (1/1, [[-6, -6], [3, 3]], [Yes, Yes], [1/1, 1/1]).

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Fraction · qf-density15-fraction-two-scaled-representations · candidate

86. Two Raw Scaled Fraction Representations

Use legal integer fraction representations with nonzero original denominators; negative denominators are allowed. Representation and value remain distinct. Original n=-2, d=2; ordered scale factors [s,t]=[2,-1]. Give (original value, raw [ns,ds] and [nt,dt], each representation’s eligibility, reduced values or undefined). Preserve the raw products using exact integer arithmetic.

View answer and explanation

(-1/1, [[-4, 4], [2, -2]], [Yes, Yes], [-1/1, -1/1])

A nonzero scale preserves value; a zero scale creates 0/0, which is not a legal representation. Compute raw products before reducing legal representations. The exact result, retaining the requested order, is (-1/1, [[-4, 4], [2, -2]], [Yes, Yes], [-1/1, -1/1]).

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Fraction · qf-density15-fraction-two-scaled-representations · candidate

87. Two Raw Scaled Fraction Representations

Use legal integer fraction representations with nonzero original denominators; negative denominators are allowed. Representation and value remain distinct. Original n=-1, d=-3; ordered scale factors [s,t]=[2,-1]. Give (original value, raw [ns,ds] and [nt,dt], each representation’s eligibility, reduced values or undefined). Preserve the raw products using exact integer arithmetic.

View answer and explanation

(1/3, [[-2, -6], [1, 3]], [Yes, Yes], [1/3, 1/3])

A nonzero scale preserves value; a zero scale creates 0/0, which is not a legal representation. Compute raw products before reducing legal representations. The exact result, retaining the requested order, is (1/3, [[-2, -6], [1, 3]], [Yes, Yes], [1/3, 1/3]).

Reviewed step-by-step derivation

Fraction · qf-density15-fraction-two-scaled-representations · candidate

88. Two Raw Scaled Fraction Representations

Use legal integer fraction representations with nonzero original denominators; negative denominators are allowed. Representation and value remain distinct. Original n=0, d=2; ordered scale factors [s,t]=[2,-1]. Give (original value, raw [ns,ds] and [nt,dt], each representation’s eligibility, reduced values or undefined). Preserve the raw products using exact integer arithmetic.

View answer and explanation

(0/1, [[0, 4], [0, -2]], [Yes, Yes], [0/1, 0/1])

A nonzero scale preserves value; a zero scale creates 0/0, which is not a legal representation. Compute raw products before reducing legal representations. The exact result, retaining the requested order, is (0/1, [[0, 4], [0, -2]], [Yes, Yes], [0/1, 0/1]).

Reviewed step-by-step derivation

Fraction · qf-density15-fraction-two-scaled-representations · candidate

89. Two Raw Scaled Fraction Representations

Use legal integer fraction representations with nonzero original denominators; negative denominators are allowed. Representation and value remain distinct. Original n=1, d=-3; ordered scale factors [s,t]=[2,-1]. Give (original value, raw [ns,ds] and [nt,dt], each representation’s eligibility, reduced values or undefined). Preserve the raw products using exact integer arithmetic.

View answer and explanation

(-1/3, [[2, -6], [-1, 3]], [Yes, Yes], [-1/3, -1/3])

A nonzero scale preserves value; a zero scale creates 0/0, which is not a legal representation. Compute raw products before reducing legal representations. The exact result, retaining the requested order, is (-1/3, [[2, -6], [-1, 3]], [Yes, Yes], [-1/3, -1/3]).

Reviewed step-by-step derivation

Fraction · qf-density15-fraction-two-scaled-representations · candidate

90. Two Raw Scaled Fraction Representations

Use legal integer fraction representations with nonzero original denominators; negative denominators are allowed. Representation and value remain distinct. Original n=2, d=2; ordered scale factors [s,t]=[2,-1]. Give (original value, raw [ns,ds] and [nt,dt], each representation’s eligibility, reduced values or undefined). Preserve the raw products using exact integer arithmetic.

View answer and explanation

(1/1, [[4, 4], [-2, -2]], [Yes, Yes], [1/1, 1/1])

A nonzero scale preserves value; a zero scale creates 0/0, which is not a legal representation. Compute raw products before reducing legal representations. The exact result, retaining the requested order, is (1/1, [[4, 4], [-2, -2]], [Yes, Yes], [1/1, 1/1]).

Reviewed step-by-step derivation

Fraction · qf-density15-fraction-two-scaled-representations · candidate

91. Two Raw Scaled Fraction Representations

Use legal integer fraction representations with nonzero original denominators; negative denominators are allowed. Representation and value remain distinct. Original n=3, d=-3; ordered scale factors [s,t]=[2,-1]. Give (original value, raw [ns,ds] and [nt,dt], each representation’s eligibility, reduced values or undefined). Preserve the raw products using exact integer arithmetic.

View answer and explanation

(-1/1, [[6, -6], [-3, 3]], [Yes, Yes], [-1/1, -1/1])

A nonzero scale preserves value; a zero scale creates 0/0, which is not a legal representation. Compute raw products before reducing legal representations. The exact result, retaining the requested order, is (-1/1, [[6, -6], [-3, 3]], [Yes, Yes], [-1/1, -1/1]).

Reviewed step-by-step derivation

Fraction · qf-density15-fraction-two-scaled-representations · candidate

92. Two Raw Scaled Fraction Representations

Use legal integer fraction representations with nonzero original denominators; negative denominators are allowed. Representation and value remain distinct. Original n=4, d=2; ordered scale factors [s,t]=[2,-1]. Give (original value, raw [ns,ds] and [nt,dt], each representation’s eligibility, reduced values or undefined). Preserve the raw products using exact integer arithmetic.

View answer and explanation

(2/1, [[8, 4], [-4, -2]], [Yes, Yes], [2/1, 2/1])

A nonzero scale preserves value; a zero scale creates 0/0, which is not a legal representation. Compute raw products before reducing legal representations. The exact result, retaining the requested order, is (2/1, [[8, 4], [-4, -2]], [Yes, Yes], [2/1, 2/1]).

Reviewed step-by-step derivation

Fraction · qf-density15-fraction-two-scaled-representations · candidate

93. Two Raw Scaled Fraction Representations

Use legal integer fraction representations with nonzero original denominators; negative denominators are allowed. Representation and value remain distinct. Original n=5, d=-3; ordered scale factors [s,t]=[2,-1]. Give (original value, raw [ns,ds] and [nt,dt], each representation’s eligibility, reduced values or undefined). Preserve the raw products using exact integer arithmetic.

View answer and explanation

(-5/3, [[10, -6], [-5, 3]], [Yes, Yes], [-5/3, -5/3])

A nonzero scale preserves value; a zero scale creates 0/0, which is not a legal representation. Compute raw products before reducing legal representations. The exact result, retaining the requested order, is (-5/3, [[10, -6], [-5, 3]], [Yes, Yes], [-5/3, -5/3]).

Reviewed step-by-step derivation

Fraction · qf-density15-fraction-two-scaled-representations · candidate

94. Two Raw Scaled Fraction Representations

Use legal integer fraction representations with nonzero original denominators; negative denominators are allowed. Representation and value remain distinct. Original n=6, d=2; ordered scale factors [s,t]=[2,-1]. Give (original value, raw [ns,ds] and [nt,dt], each representation’s eligibility, reduced values or undefined). Preserve the raw products using exact integer arithmetic.

View answer and explanation

(3/1, [[12, 4], [-6, -2]], [Yes, Yes], [3/1, 3/1])

A nonzero scale preserves value; a zero scale creates 0/0, which is not a legal representation. Compute raw products before reducing legal representations. The exact result, retaining the requested order, is (3/1, [[12, 4], [-6, -2]], [Yes, Yes], [3/1, 3/1]).

Reviewed step-by-step derivation

Fraction · qf-density15-fraction-two-scaled-representations · candidate

95. Two Raw Scaled Fraction Representations

Use legal integer fraction representations with nonzero original denominators; negative denominators are allowed. Representation and value remain distinct. Original n=7, d=-3; ordered scale factors [s,t]=[2,-1]. Give (original value, raw [ns,ds] and [nt,dt], each representation’s eligibility, reduced values or undefined). Preserve the raw products using exact integer arithmetic.

View answer and explanation

(-7/3, [[14, -6], [-7, 3]], [Yes, Yes], [-7/3, -7/3])

A nonzero scale preserves value; a zero scale creates 0/0, which is not a legal representation. Compute raw products before reducing legal representations. The exact result, retaining the requested order, is (-7/3, [[14, -6], [-7, 3]], [Yes, Yes], [-7/3, -7/3]).

Reviewed step-by-step derivation

Fraction · qf-density15-fraction-two-scaled-representations · candidate

96. Two Raw Scaled Fraction Representations

Use legal integer fraction representations with nonzero original denominators; negative denominators are allowed. Representation and value remain distinct. Original n=8, d=2; ordered scale factors [s,t]=[2,-1]. Give (original value, raw [ns,ds] and [nt,dt], each representation’s eligibility, reduced values or undefined). Preserve the raw products using exact integer arithmetic.

View answer and explanation

(4/1, [[16, 4], [-8, -2]], [Yes, Yes], [4/1, 4/1])

A nonzero scale preserves value; a zero scale creates 0/0, which is not a legal representation. Compute raw products before reducing legal representations. The exact result, retaining the requested order, is (4/1, [[16, 4], [-8, -2]], [Yes, Yes], [4/1, 4/1]).

Reviewed step-by-step derivation

Fraction · qf-density15-fraction-two-scaled-representations · candidate

97. Two Raw Scaled Fraction Representations

Use legal integer fraction representations with nonzero original denominators; negative denominators are allowed. Representation and value remain distinct. Original n=9, d=-3; ordered scale factors [s,t]=[2,-1]. Give (original value, raw [ns,ds] and [nt,dt], each representation’s eligibility, reduced values or undefined). Preserve the raw products using exact integer arithmetic.

View answer and explanation

(-3/1, [[18, -6], [-9, 3]], [Yes, Yes], [-3/1, -3/1])

A nonzero scale preserves value; a zero scale creates 0/0, which is not a legal representation. Compute raw products before reducing legal representations. The exact result, retaining the requested order, is (-3/1, [[18, -6], [-9, 3]], [Yes, Yes], [-3/1, -3/1]).

Reviewed step-by-step derivation

Fraction · qf-density15-fraction-two-scaled-representations · candidate

98. Two Raw Scaled Fraction Representations

Use legal integer fraction representations with nonzero original denominators; negative denominators are allowed. Representation and value remain distinct. Original n=10, d=2; ordered scale factors [s,t]=[2,-1]. Give (original value, raw [ns,ds] and [nt,dt], each representation’s eligibility, reduced values or undefined). Preserve the raw products using exact integer arithmetic.

View answer and explanation

(5/1, [[20, 4], [-10, -2]], [Yes, Yes], [5/1, 5/1])

A nonzero scale preserves value; a zero scale creates 0/0, which is not a legal representation. Compute raw products before reducing legal representations. The exact result, retaining the requested order, is (5/1, [[20, 4], [-10, -2]], [Yes, Yes], [5/1, 5/1]).

Reviewed step-by-step derivation

Fraction · qf-density15-fraction-two-scaled-representations · candidate

99. Two Raw Scaled Fraction Representations

Use legal integer fraction representations with nonzero original denominators; negative denominators are allowed. Representation and value remain distinct. Original n=11, d=-3; ordered scale factors [s,t]=[2,-1]. Give (original value, raw [ns,ds] and [nt,dt], each representation’s eligibility, reduced values or undefined). Preserve the raw products using exact integer arithmetic.

View answer and explanation

(-11/3, [[22, -6], [-11, 3]], [Yes, Yes], [-11/3, -11/3])

A nonzero scale preserves value; a zero scale creates 0/0, which is not a legal representation. Compute raw products before reducing legal representations. The exact result, retaining the requested order, is (-11/3, [[22, -6], [-11, 3]], [Yes, Yes], [-11/3, -11/3]).

Reviewed step-by-step derivation

Fraction · qf-density15-fraction-two-scaled-representations · candidate

100. Two Raw Scaled Fraction Representations

Use legal integer fraction representations with nonzero original denominators; negative denominators are allowed. Representation and value remain distinct. Original n=12, d=2; ordered scale factors [s,t]=[2,-1]. Give (original value, raw [ns,ds] and [nt,dt], each representation’s eligibility, reduced values or undefined). Preserve the raw products using exact integer arithmetic.

View answer and explanation

(6/1, [[24, 4], [-12, -2]], [Yes, Yes], [6/1, 6/1])

A nonzero scale preserves value; a zero scale creates 0/0, which is not a legal representation. Compute raw products before reducing legal representations. The exact result, retaining the requested order, is (6/1, [[24, 4], [-12, -2]], [Yes, Yes], [6/1, 6/1]).

Reviewed step-by-step derivation

Fraction · qf-density15-fraction-two-scaled-representations · candidate

Canonical question JSONL · English JSONL · Validation report