Subtract 42/27 from 2/5, Solve 2/5 - 1 15/27 as a fraction

Subtract 42/27 from 2/5

1^st number: 2/5, 2^nd number: 1 15/27

2/5 - 42/27 is -52/45.

Find the least common denominator or LCM of the two denominators:
LCM of 5 and 27 is 135

Next, find the equivalent fraction of both fractional numbers with denominator 135
For the 1st fraction, since 5 × 27 = 135,
2/5 = 2 × 27/5 × 27 = 54/135
Likewise, for the 2nd fraction, since 27 × 5 = 135,
42/27 = 42 × 5/27 × 5 = 210/135
Subtract the two like fractions:
54/135 - 210/135 = 54 - 210/135 = -156/135
After reducing the fraction, the answer is -52/45

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