Subtract 81/6 from 4/56, Solve 4/56

Subtract 81/6 from 4/56

1^st number: 4/56, 2^nd number: 13 3/6

4/56 - 81/6 is -94/7.

Find the least common denominator or LCM of the two denominators:
LCM of 56 and 6 is 168

Next, find the equivalent fraction of both fractional numbers with denominator 168
For the 1st fraction, since 56 × 3 = 168,
4/56 = 4 × 3/56 × 3 = 12/168
Likewise, for the 2nd fraction, since 6 × 28 = 168,
81/6 = 81 × 28/6 × 28 = 2268/168
Subtract the two like fractions:
12/168 - 2268/168 = 12 - 2268/168 = -2256/168
After reducing the fraction, the answer is -94/7

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