Subtract 21/32 from 9/15
9/15 - 21/32 is -9/160.
Steps for subtracting fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 15 and 32 is 480
Next, find the equivalent fraction of both fractional numbers with denominator 480 - For the 1st fraction, since 15 × 32 = 480,
9/15 = 9 × 32/15 × 32 = 288/480 - Likewise, for the 2nd fraction, since 32 × 15 = 480,
21/32 = 21 × 15/32 × 15 = 315/480 - Subtract the two like fractions:
288/480 - 315/480 = 288 - 315/480 = -27/480 - After reducing the fraction, the answer is -9/160
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