Subtract 10/96 from 20/21, Solve 20/21

Subtract 10/96 from 20/21

20/21 - 10/96 is 95/112.

Find the least common denominator or LCM of the two denominators:
LCM of 21 and 96 is 672

Next, find the equivalent fraction of both fractional numbers with denominator 672
For the 1st fraction, since 21 × 32 = 672,
20/21 = 20 × 32/21 × 32 = 640/672
Likewise, for the 2nd fraction, since 96 × 7 = 672,
10/96 = 10 × 7/96 × 7 = 70/672
Subtract the two like fractions:
640/672 - 70/672 = 640 - 70/672 = 570/672
After reducing the fraction, the answer is 95/112

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