Subtract 21/35 from 7/56
7/56 - 21/35 is -19/40.
Steps for subtracting fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 56 and 35 is 280
Next, find the equivalent fraction of both fractional numbers with denominator 280 - For the 1st fraction, since 56 × 5 = 280,
7/56 = 7 × 5/56 × 5 = 35/280 - Likewise, for the 2nd fraction, since 35 × 8 = 280,
21/35 = 21 × 8/35 × 8 = 168/280 - Subtract the two like fractions:
35/280 - 168/280 = 35 - 168/280 = -133/280 - After reducing the fraction, the answer is -19/40
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