Subtract 72/7 from 9/24, Solve 9/24

Subtract 72/7 from 9/24

1^st number: 9/24, 2^nd number: 10 2/7

9/24 - 72/7 is -555/56.

Find the least common denominator or LCM of the two denominators:
LCM of 24 and 7 is 168

Next, find the equivalent fraction of both fractional numbers with denominator 168
For the 1st fraction, since 24 × 7 = 168,
9/24 = 9 × 7/24 × 7 = 63/168
Likewise, for the 2nd fraction, since 7 × 24 = 168,
72/7 = 72 × 24/7 × 24 = 1728/168
Subtract the two like fractions:
63/168 - 1728/168 = 63 - 1728/168 = -1665/168
After reducing the fraction, the answer is -555/56

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