Subtract 20/84 from 25/15, Solve 1 10/15

Subtract 20/84 from 25/15

1^st number: 1 10/15, 2^nd number: 20/84

25/15 - 20/84 is 10/7.

Find the least common denominator or LCM of the two denominators:
LCM of 15 and 84 is 420

Next, find the equivalent fraction of both fractional numbers with denominator 420
For the 1st fraction, since 15 × 28 = 420,
25/15 = 25 × 28/15 × 28 = 700/420
Likewise, for the 2nd fraction, since 84 × 5 = 420,
20/84 = 20 × 5/84 × 5 = 100/420
Subtract the two like fractions:
700/420 - 100/420 = 700 - 100/420 = 600/420
After reducing the fraction, the answer is 10/7
In mixed form: 13/7

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