Subtract 21/56 from 21/10
1st number: 2 1/10, 2nd number: 21/56
21/10 - 21/56 is 69/40.
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,
21/10 = 21 × 28/10 × 28 = 588/280 - Likewise, for the 2nd fraction, since 56 × 5 = 280,
21/56 = 21 × 5/56 × 5 = 105/280 - Subtract the two like fractions:
588/280 - 105/280 = 588 - 105/280 = 483/280 - After reducing the fraction, the answer is 69/40
- In mixed form: 129/40
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