Subtract 56/32 from 8/42, Solve 8/42

Subtract 56/32 from 8/42

1^st number: 8/42, 2^nd number: 1 24/32

8/42 - 56/32 is -131/84.

Find the least common denominator or LCM of the two denominators:
LCM of 42 and 32 is 672

Next, find the equivalent fraction of both fractional numbers with denominator 672
For the 1st fraction, since 42 × 16 = 672,
8/42 = 8 × 16/42 × 16 = 128/672
Likewise, for the 2nd fraction, since 32 × 21 = 672,
56/32 = 56 × 21/32 × 21 = 1176/672
Subtract the two like fractions:
128/672 - 1176/672 = 128 - 1176/672 = -1048/672
After reducing the fraction, the answer is -131/84

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