Subtract 15/9 from 10/14, Solve 10/14

Subtract 15/9 from 10/14

1^st number: 10/14, 2^nd number: 1 6/9

10/14 - 15/9 is -20/21.

Find the least common denominator or LCM of the two denominators:
LCM of 14 and 9 is 126

Next, find the equivalent fraction of both fractional numbers with denominator 126
For the 1st fraction, since 14 × 9 = 126,
10/14 = 10 × 9/14 × 9 = 90/126
Likewise, for the 2nd fraction, since 9 × 14 = 126,
15/9 = 15 × 14/9 × 14 = 210/126
Subtract the two like fractions:
90/126 - 210/126 = 90 - 210/126 = -120/126
After reducing the fraction, the answer is -20/21

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