Subtract 42/32 from 20/28
1st number: 20/28, 2nd number: 1 10/32
20/28 - 42/32 is -67/112.
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,
20/28 = 20 × 8/28 × 8 = 160/224 - Likewise, for the 2nd fraction, since 32 × 7 = 224,
42/32 = 42 × 7/32 × 7 = 294/224 - Subtract the two like fractions:
160/224 - 294/224 = 160 - 294/224 = -134/224 - After reducing the fraction, the answer is -67/112
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