Subtract 4/96 from 20/21
20/21 - 4/96 is 51/56.
Steps for subtracting fractions
- 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,
4/96 = 4 × 7/96 × 7 = 28/672 - Subtract the two like fractions:
640/672 - 28/672 = 640 - 28/672 = 612/672 - After reducing the fraction, the answer is 51/56
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