IRevise.com weekly Online Tutorials Schedule 4th May to 8th May

Ratios, Revision Notes

Ratios

A Ratio is a way of comparing the sizes of two or more quantities

A colon (:) is used to express Ratios

If you multiply/divide one side of a ratio you must multiply/divide the other side of the ratio by the same amount

3 : 9 = 1 : 3 9 : 21 = 3 : 7

5 : 25 = 1 : 5 91 : 143 = 7 : 11

4 : 14 = 2 : 7 104 : 136 = 13 : 17

When dealing with Ratios add the separate parts of the ratio to get the total amount

1 : 9 Total amount 1+ 9 = 10

2 : 3 Total amou...

Sign In To View

Sign in or sign up in order to view resources on iRevise

Sign In Create An Account