How to calculate ratio of 3 numbers

A ratio comparesvalues.

A ratio says how much of one thing there is compared to another thing.

There are 3 blue squares to 1 yellow square

Ratios can be shown in different ways:

Use the ":" to separate the values:		3 : 1
Or we can use the word "to":		3 to 1
Or write it like a fraction:		31

A ratio can be scaled up:

Here the ratio is also 3 blue squares to 1 yellow square,
even though there are more squares.

Try it Yourself

images/ratio-slider.js

Using Ratios

The trick with ratios is to always multiply or divide the numbers by the same value.

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