Subtract 60/42 from 30/32, Solve 30/32

Subtract 60/42 from 30/32

1^st number: 30/32, 2^nd number: 1 18/42

30/32 - 60/42 is -55/112.

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

Next, find the equivalent fraction of both fractional numbers with denominator 672
For the 1st fraction, since 32 × 21 = 672,
30/32 = 30 × 21/32 × 21 = 630/672
Likewise, for the 2nd fraction, since 42 × 16 = 672,
60/42 = 60 × 16/42 × 16 = 960/672
Subtract the two like fractions:
630/672 - 960/672 = 630 - 960/672 = -330/672
After reducing the fraction, the answer is -55/112

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