Subtract 7/21 from 9/32
9/32 - 7/21 is -5/96.
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,
9/32 = 9 × 21/32 × 21 = 189/672 - Likewise, for the 2nd fraction, since 21 × 32 = 672,
7/21 = 7 × 32/21 × 32 = 224/672 - Subtract the two like fractions:
189/672 - 224/672 = 189 - 224/672 = -35/672 - After reducing the fraction, the answer is -5/96
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