Subtract 9/63 from 72/14, Solve 5 2/14

Subtract 9/63 from 72/14

1^st number: 5 2/14, 2^nd number: 9/63

72/14 - 9/63 is 5/1.

Find the least common denominator or LCM of the two denominators:
LCM of 14 and 63 is 126

Next, find the equivalent fraction of both fractional numbers with denominator 126
For the 1st fraction, since 14 × 9 = 126,
72/14 = 72 × 9/14 × 9 = 648/126
Likewise, for the 2nd fraction, since 63 × 2 = 126,
9/63 = 9 × 2/63 × 2 = 18/126
Subtract the two like fractions:
648/126 - 18/126 = 648 - 18/126 = 630/126
After reducing the fraction, the answer is 5/1

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