Subtract 56/21 from 8/27, Solve 8/27

Subtract 56/21 from 8/27

1^st number: 8/27, 2^nd number: 2 14/21

8/27 - 56/21 is -64/27.

Find the least common denominator or LCM of the two denominators:
LCM of 27 and 21 is 189

Next, find the equivalent fraction of both fractional numbers with denominator 189
For the 1st fraction, since 27 × 7 = 189,
8/27 = 8 × 7/27 × 7 = 56/189
Likewise, for the 2nd fraction, since 21 × 9 = 189,
56/21 = 56 × 9/21 × 9 = 504/189
Subtract the two like fractions:
56/189 - 504/189 = 56 - 504/189 = -448/189
After reducing the fraction, the answer is -64/27

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