Subtract 54/56 from 24/21, Solve 1 3/21

Subtract 54/56 from 24/21

1^st number: 1 3/21, 2^nd number: 54/56

24/21 - 54/56 is 5/28.

Find the least common denominator or LCM of the two denominators:
LCM of 21 and 56 is 168

Next, find the equivalent fraction of both fractional numbers with denominator 168
For the 1st fraction, since 21 × 8 = 168,
24/21 = 24 × 8/21 × 8 = 192/168
Likewise, for the 2nd fraction, since 56 × 3 = 168,
54/56 = 54 × 3/56 × 3 = 162/168
Subtract the two like fractions:
192/168 - 162/168 = 192 - 162/168 = 30/168
After reducing the fraction, the answer is 5/28

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