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

Subtract 63/14 from 9/72

1^st number: 9/72, 2^nd number: 4 7/14

9/72 - 63/14 is -35/8.

Find the least common denominator or LCM of the two denominators:
LCM of 72 and 14 is 504

Next, find the equivalent fraction of both fractional numbers with denominator 504
For the 1st fraction, since 72 × 7 = 504,
9/72 = 9 × 7/72 × 7 = 63/504
Likewise, for the 2nd fraction, since 14 × 36 = 504,
63/14 = 63 × 36/14 × 36 = 2268/504
Subtract the two like fractions:
63/504 - 2268/504 = 63 - 2268/504 = -2205/504
After reducing the fraction, the answer is -35/8

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