Subtract 20/32 from 21/63
21/63 - 20/32 is -7/24.
Steps for subtracting fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 63 and 32 is 2016
Next, find the equivalent fraction of both fractional numbers with denominator 2016 - For the 1st fraction, since 63 × 32 = 2016,
21/63 = 21 × 32/63 × 32 = 672/2016 - Likewise, for the 2nd fraction, since 32 × 63 = 2016,
20/32 = 20 × 63/32 × 63 = 1260/2016 - Subtract the two like fractions:
672/2016 - 1260/2016 = 672 - 1260/2016 = -588/2016 - After reducing the fraction, the answer is -7/24
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