Subtract 2/56 from 21/20
1st number: 1 1/20, 2nd number: 2/56
21/20 - 2/56 is 71/70.
Steps for subtracting fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 20 and 56 is 280
Next, find the equivalent fraction of both fractional numbers with denominator 280 - For the 1st fraction, since 20 × 14 = 280,
21/20 = 21 × 14/20 × 14 = 294/280 - Likewise, for the 2nd fraction, since 56 × 5 = 280,
2/56 = 2 × 5/56 × 5 = 10/280 - Subtract the two like fractions:
294/280 - 10/280 = 294 - 10/280 = 284/280 - After reducing the fraction, the answer is 71/70
- In mixed form: 11/70
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