Subtract 63/18 from 16/7, Solve 2 2/7

Subtract 63/18 from 16/7

1^st number: 2 2/7, 2^nd number: 3 9/18

16/7 - 63/18 is -17/14.

Find the least common denominator or LCM of the two denominators:
LCM of 7 and 18 is 126

Next, find the equivalent fraction of both fractional numbers with denominator 126
For the 1st fraction, since 7 × 18 = 126,
16/7 = 16 × 18/7 × 18 = 288/126
Likewise, for the 2nd fraction, since 18 × 7 = 126,
63/18 = 63 × 7/18 × 7 = 441/126
Subtract the two like fractions:
288/126 - 441/126 = 288 - 441/126 = -153/126
After reducing the fraction, the answer is -17/14

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