Subtract 42/32 from 10/54, Solve 10/54

Subtract 42/32 from 10/54

1^st number: 10/54, 2^nd number: 1 10/32

10/54 - 42/32 is -487/432.

Find the least common denominator or LCM of the two denominators:
LCM of 54 and 32 is 864

Next, find the equivalent fraction of both fractional numbers with denominator 864
For the 1st fraction, since 54 × 16 = 864,
10/54 = 10 × 16/54 × 16 = 160/864
Likewise, for the 2nd fraction, since 32 × 27 = 864,
42/32 = 42 × 27/32 × 27 = 1134/864
Subtract the two like fractions:
160/864 - 1134/864 = 160 - 1134/864 = -974/864
After reducing the fraction, the answer is -487/432

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