Subtract 42/28 from 2/27, Solve 2/27

Subtract 42/28 from 2/27

1^st number: 2/27, 2^nd number: 1 14/28

2/27 - 42/28 is -77/54.

Find the least common denominator or LCM of the two denominators:
LCM of 27 and 28 is 756

Next, find the equivalent fraction of both fractional numbers with denominator 756
For the 1st fraction, since 27 × 28 = 756,
2/27 = 2 × 28/27 × 28 = 56/756
Likewise, for the 2nd fraction, since 28 × 27 = 756,
42/28 = 42 × 27/28 × 27 = 1134/756
Subtract the two like fractions:
56/756 - 1134/756 = 56 - 1134/756 = -1078/756
After reducing the fraction, the answer is -77/54

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