The Singing Hedgehog Guide to:
Ratio and Proportion
2
The most important fact to remember is:
Ratios are NOT fractions
Here is an example to show this:
James and Michael have 30 sweets.
If they share them in the ratio 1:2
how many sweets does Michael get?
We have to separate the sweets into two groups.
The groups need to have three equal
portions
,
so that James has one
portion
and Michael gets two
portions
.
Each
portion
will be 30 ÷ 3 = ten sweets.
The sweets need to be divided into 10 and 20,
so Michael gets twenty sweets.
So 1:2 is not the same as a half!
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