isabellaharrison isabellaharrison

20-01-2017
Mathematics

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How do you tell whether the ratios form a proportion

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Layne2000 Layne2000

20-01-2017

Set them up like this example:

4 8
_ = _

6 12

cross multiply by multiplying 4 by 12 and 6 by 8.
If they are equal then it is proportional.

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