Subtract 3/42 from 20/96, Solve 20/96

Subtract 3/42 from 20/96

20/96 - 3/42 is 23/168.

Find the least common denominator or LCM of the two denominators:
LCM of 96 and 42 is 672

Next, find the equivalent fraction of both fractional numbers with denominator 672
For the 1st fraction, since 96 × 7 = 672,
20/96 = 20 × 7/96 × 7 = 140/672
Likewise, for the 2nd fraction, since 42 × 16 = 672,
3/42 = 3 × 16/42 × 16 = 48/672
Subtract the two like fractions:
140/672 - 48/672 = 140 - 48/672 = 92/672
After reducing the fraction, the answer is 23/168

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