Subtract 27/32 from 5/21
5/21 - 27/32 is -407/672.
Steps for subtracting fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 21 and 32 is 672
Next, find the equivalent fraction of both fractional numbers with denominator 672 - For the 1st fraction, since 21 × 32 = 672,
5/21 = 5 × 32/21 × 32 = 160/672 - Likewise, for the 2nd fraction, since 32 × 21 = 672,
27/32 = 27 × 21/32 × 21 = 567/672 - Subtract the two like fractions:
160/672 - 567/672 = 160 - 567/672 = -407/672
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