Concept · 4 steps · NESA MA4-RAT-C-01

Recognising & Simplifying Ratios

A ratio is just a tidy way of saying "this much of one thing, that much of another". Get the idea and the simplifying, and recipes, paint mixes and sharing all fall into place.

1Where it comes fromA ratio is a comparison. Scale the mix up and down — same taste. 2How to do itDivide both parts by their HCF, with a generator to lock it in. 3Where it gets trickyOrder matters, units must match, and it's not a fraction of the whole. 4Out in the wildRecipes, paint and sharing — including working backwards.

← This concept rests on

Equivalent Fractions
Highest Common Factor

→ It unlocks

Solving Problems Involving Ratios