Subtract 21/56 from 56/70
56/70 - 21/56 is 17/40.
Steps for subtracting fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 70 and 56 is 280
Next, find the equivalent fraction of both fractional numbers with denominator 280 - For the 1st fraction, since 70 × 4 = 280,
56/70 = 56 × 4/70 × 4 = 224/280 - Likewise, for the 2nd fraction, since 56 × 5 = 280,
21/56 = 21 × 5/56 × 5 = 105/280 - Subtract the two like fractions:
224/280 - 105/280 = 224 - 105/280 = 119/280 - After reducing the fraction, the answer is 17/40
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