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

Subtract 20/21 from 10/96

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

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

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

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