Subtract 8/42 from 40/27, Solve 1 13/27

Subtract 8/42 from 40/27

1^st number: 1 13/27, 2^nd number: 8/42

40/27 - 8/42 is 244/189.

Find the least common denominator or LCM of the two denominators:
LCM of 27 and 42 is 378

Next, find the equivalent fraction of both fractional numbers with denominator 378
For the 1st fraction, since 27 × 14 = 378,
40/27 = 40 × 14/27 × 14 = 560/378
Likewise, for the 2nd fraction, since 42 × 9 = 378,
8/42 = 8 × 9/42 × 9 = 72/378
Subtract the two like fractions:
560/378 - 72/378 = 560 - 72/378 = 488/378
After reducing the fraction, the answer is 244/189
In mixed form: 155/189

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