Subtract 4/56 from 1/54, Solve 1/54

Subtract 4/56 from 1/54

1/54 - 4/56 is -10/189.

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,
1/54 = 1 × 28/54 × 28 = 28/1512
Likewise, for the 2nd fraction, since 56 × 27 = 1512,
4/56 = 4 × 27/56 × 27 = 108/1512
Subtract the two like fractions:
28/1512 - 108/1512 = 28 - 108/1512 = -80/1512
After reducing the fraction, the answer is -10/189

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