Subtract 54/56 from 9/54, Solve 9/54

Subtract 54/56 from 9/54

9/54 - 54/56 is -67/84.

Find the least common denominator or LCM of the two denominators:
LCM of 54 and 56 is 1512

Next, find the equivalent fraction of both fractional numbers with denominator 1512
For the 1st fraction, since 54 × 28 = 1512,
9/54 = 9 × 28/54 × 28 = 252/1512
Likewise, for the 2nd fraction, since 56 × 27 = 1512,
54/56 = 54 × 27/56 × 27 = 1458/1512
Subtract the two like fractions:
252/1512 - 1458/1512 = 252 - 1458/1512 = -1206/1512
After reducing the fraction, the answer is -67/84

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