Subtract 90/56 from 1/27, Solve 1/27

Subtract 90/56 from 1/27

1^st number: 1/27, 2^nd number: 1 34/56

1/27 - 90/56 is -1187/756.

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

Next, find the equivalent fraction of both fractional numbers with denominator 1512
For the 1st fraction, since 27 × 56 = 1512,
1/27 = 1 × 56/27 × 56 = 56/1512
Likewise, for the 2nd fraction, since 56 × 27 = 1512,
90/56 = 90 × 27/56 × 27 = 2430/1512
Subtract the two like fractions:
56/1512 - 2430/1512 = 56 - 2430/1512 = -2374/1512
After reducing the fraction, the answer is -1187/756

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