Subtract 12/27 from 18/56, Solve 18/56

Subtract 12/27 from 18/56

18/56 - 12/27 is -31/252.

Find the least common denominator or LCM of the two denominators:
LCM of 56 and 27 is 1512

Next, find the equivalent fraction of both fractional numbers with denominator 1512
For the 1st fraction, since 56 × 27 = 1512,
18/56 = 18 × 27/56 × 27 = 486/1512
Likewise, for the 2nd fraction, since 27 × 56 = 1512,
12/27 = 12 × 56/27 × 56 = 672/1512
Subtract the two like fractions:
486/1512 - 672/1512 = 486 - 672/1512 = -186/1512
After reducing the fraction, the answer is -31/252

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