LI: To represent and calculate ratio

Following on from yesterday’s lesson, today we’ll continue to look at **ratio**. We will start by looking at a simple fraction question and thinking about how this relates to ratio. First you will learn how to identify, say and write ratios. Then you will learn how to **simplify ratios**. Let’s look at the first question together!

There are 18 sandwiches altogether. 12 are cheese and 6 are cucumber, so we can simplify this ratio by dividing each number by six – 12 ÷ 6 = 2 and 6 ÷ 6 = 1 so the ratio of cheese to cucumber sandwiches is 2:1. The ratio of cucumber to cheese sandwiches is 1:2.