Subtract 21/84 from 56/42
1st number: 1 14/42, 2nd number: 21/84
56/42 - 21/84 is 13/12.
Steps for subtracting fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 42 and 84 is 84
Next, find the equivalent fraction of both fractional numbers with denominator 84 - For the 1st fraction, since 42 × 2 = 84,
56/42 = 56 × 2/42 × 2 = 112/84 - Likewise, for the 2nd fraction, since 84 × 1 = 84,
21/84 = 21 × 1/84 × 1 = 21/84 - Subtract the two like fractions:
112/84 - 21/84 = 112 - 21/84 = 91/84 - After reducing the fraction, the answer is 13/12
- In mixed form: 11/12
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