Subtract 21/54 from 56/7
1st number: 8 0/7, 2nd number: 21/54
56/7 - 21/54 is 137/18.
Steps for subtracting fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 7 and 54 is 378
Next, find the equivalent fraction of both fractional numbers with denominator 378 - For the 1st fraction, since 7 × 54 = 378,
56/7 = 56 × 54/7 × 54 = 3024/378 - Likewise, for the 2nd fraction, since 54 × 7 = 378,
21/54 = 21 × 7/54 × 7 = 147/378 - Subtract the two like fractions:
3024/378 - 147/378 = 3024 - 147/378 = 2877/378 - After reducing the fraction, the answer is 137/18
- In mixed form: 711/18
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