Subtract 21/56 from 2/10
2/10 - 21/56 is -7/40.
Steps for subtracting fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 10 and 56 is 280
Next, find the equivalent fraction of both fractional numbers with denominator 280 - For the 1st fraction, since 10 × 28 = 280,
2/10 = 2 × 28/10 × 28 = 56/280 - Likewise, for the 2nd fraction, since 56 × 5 = 280,
21/56 = 21 × 5/56 × 5 = 105/280 - Subtract the two like fractions:
56/280 - 105/280 = 56 - 105/280 = -49/280 - After reducing the fraction, the answer is -7/40
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