Subtract 42/28 from 7/54, Solve 7/54

Subtract 42/28 from 7/54

1^st number: 7/54, 2^nd number: 1 14/28

7/54 - 42/28 is -37/27.

Find the least common denominator or LCM of the two denominators:
LCM of 54 and 28 is 756

Next, find the equivalent fraction of both fractional numbers with denominator 756
For the 1st fraction, since 54 × 14 = 756,
7/54 = 7 × 14/54 × 14 = 98/756
Likewise, for the 2nd fraction, since 28 × 27 = 756,
42/28 = 42 × 27/28 × 27 = 1134/756
Subtract the two like fractions:
98/756 - 1134/756 = 98 - 1134/756 = -1036/756
After reducing the fraction, the answer is -37/27

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