Subtract 28/32 from 9/15
9/15 - 28/32 is -11/40.
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,
28/32 = 28 × 15/32 × 15 = 420/480 - Subtract the two like fractions:
288/480 - 420/480 = 288 - 420/480 = -132/480 - After reducing the fraction, the answer is -11/40
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