Subtract 56/21 from 40/27, Solve 1 13/27

Subtract 56/21 from 40/27

1^st number: 1 13/27, 2^nd number: 2 14/21

40/27 - 56/21 is -32/27.

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,
40/27 = 40 × 7/27 × 7 = 280/189
Likewise, for the 2nd fraction, since 21 × 9 = 189,
56/21 = 56 × 9/21 × 9 = 504/189
Subtract the two like fractions:
280/189 - 504/189 = 280 - 504/189 = -224/189
After reducing the fraction, the answer is -32/27

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