Year 9 Interactive Maths - Second Edition

Finding the Ratio of Two Quantities

We must express both quantities in the same unit of measurement to find the ratio of two quantities in its simplest form.

Example 2

Find the ratio of 40 centimetres to 2 metres in its simplest form.

Solution:

Note:

We can use ratios to compare more than two quantities conveniently.  Fractions are not usually suitable for this.