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Anonymous
10/15 is 2/3 since 5 goes into 10 twice and it goes into 15 three times.
OR 10=5x2
15=5x3.
As a fraction we have (5*2)/(5*3)=2/3 because the 5's cancel.
Wiki User
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15/10 = 3/2
-2/3
3/5 = 9/15
1/15
15/20 = 3/4
It is: 7/15
4 over 15 is already in lowest terms.