Subtract 42/40 from 49/56
1st number: 49/56, 2nd number: 1 2/40
49/56 - 42/40 is -7/40.
Steps for subtracting fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 56 and 40 is 280
Next, find the equivalent fraction of both fractional numbers with denominator 280 - For the 1st fraction, since 56 × 5 = 280,
49/56 = 49 × 5/56 × 5 = 245/280 - Likewise, for the 2nd fraction, since 40 × 7 = 280,
42/40 = 42 × 7/40 × 7 = 294/280 - Subtract the two like fractions:
245/280 - 294/280 = 245 - 294/280 = -49/280 - After reducing the fraction, the answer is -7/40
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