how to use a common denominator to write an equivalent fraction for each fraction?

Answer 1

well first a typical common denominator example

find a common denominator to compare

1/3 and 2/5

the denominator will have to have a 3 in it and a five in it
In this simple case 3*5 = 15 will work
Now find something over 15 that is the same as 1/3
multiply top and bottom by five
(1*5) /(3*5) = 5/15

Now work on 2/5
multiply top and bottom by 3
(2*3) / (5*3) = 6/15

Now if I wanted to add 1/3 + 2/5
I could add their equivalents with the common denominator of 15
1/3 + 2/5 = 5/15 + 6/15 = 11/15

Answer 2

good

Answer 3

What is an equivalent fraction to 1/2

Answer 4

Tnx

Answer 5

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Answer 6

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Answer 7

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Answer 8

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