# Ratio and proportion

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

[Catalogue presentation and source-binding data](https://ocme.evemisslab.com/data/i18n/catalogue.en.json)



## [Ratio and proportion](https://ocme.evemisslab.com/en/atlas/atlas-ratio-proportion/)

This entry interprets the numerical ratio a:b as a/b and defines a proportion as the equality of two valid ratios.

atlas-ratio-proportion · canonical_mko

[Ratio and proportion](https://ocme.evemisslab.com/en/mko/mko-ratio-proportion/)

## Prerequisite nodes


- [Fraction](https://ocme.evemisslab.com/en/atlas/atlas-fraction/)