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What is the equivalent fraction to 12/15

what is the missing values in these equivalent fractions to... (i have done these so far ) 4/5 = 12/15 =20 ..? i have tried but i i dont get it..
Question asked by: Jadepym1

Asked on: 19 Oct 2009
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4/5 = 12/15 =20 / ?

OK, so we need to work out what the question mark is.

Here is the easy method to retain a fraction's value. All you need to do is remember that whatever you do to the top you must do to the bottom. To get from 4 to 20, you multiply by 5. Therefore multiply the bottom by 5 to, to get 25. This gives us:
4/5 = 12/15 = 20 /25

By: knowitall
Replied at: 22 Oct 2009
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