Subtract 18/32 from 7/28
7/28 - 18/32 is -5/16.
Steps for subtracting fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 28 and 32 is 224
Next, find the equivalent fraction of both fractional numbers with denominator 224 - For the 1st fraction, since 28 × 8 = 224,
7/28 = 7 × 8/28 × 8 = 56/224 - Likewise, for the 2nd fraction, since 32 × 7 = 224,
18/32 = 18 × 7/32 × 7 = 126/224 - Subtract the two like fractions:
56/224 - 126/224 = 56 - 126/224 = -70/224 - After reducing the fraction, the answer is -5/16
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