Subtract 9/14 from 21/15, Solve 1 6/15

Subtract 9/14 from 21/15

1^st number: 1 6/15, 2^nd number: 9/14

21/15 - 9/14 is 53/70.

Find the least common denominator or LCM of the two denominators:
LCM of 15 and 14 is 210

Next, find the equivalent fraction of both fractional numbers with denominator 210
For the 1st fraction, since 15 × 14 = 210,
21/15 = 21 × 14/15 × 14 = 294/210
Likewise, for the 2nd fraction, since 14 × 15 = 210,
9/14 = 9 × 15/14 × 15 = 135/210
Subtract the two like fractions:
294/210 - 135/210 = 294 - 135/210 = 159/210
After reducing the fraction, the answer is 53/70

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