The Singing Hedgehog Guide to:
Ratio and Proportion
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
so that James has one
and Michael gets two
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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