Subtract 5/21 from 20/32
20/32 - 5/21 is 65/168.
Steps for subtracting fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 32 and 21 is 672
Next, find the equivalent fraction of both fractional numbers with denominator 672 - For the 1st fraction, since 32 × 21 = 672,
20/32 = 20 × 21/32 × 21 = 420/672 - Likewise, for the 2nd fraction, since 21 × 32 = 672,
5/21 = 5 × 32/21 × 32 = 160/672 - Subtract the two like fractions:
420/672 - 160/672 = 420 - 160/672 = 260/672 - After reducing the fraction, the answer is 65/168
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