Add or multiply

To find the ratio - when do you add and when do you multiply?

Use ratio language

Learn about the language of ratio.

Introduction to the ratio symbol

Learn about the ratio symbol.

Ratio and fractions

Learn about the relationship between fractions and ratios.

Scale drawing

Learn how to draw to scale.

Use scale factors

Learn how to use scale factors.

Similar shapes

Explore similar shapes.

Ratio problems

Try some ratio problems.

Proportion problems

Try some proportion problems.

Recipes

Can you adjust the ratio within recipes?