Subtract 56/7 from 81/4
1st number: 20 1/4, 2nd number: 8 0/7
81/4 - 56/7 is 49/4.
Steps for subtracting fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 4 and 7 is 28
Next, find the equivalent fraction of both fractional numbers with denominator 28 - For the 1st fraction, since 4 × 7 = 28,
81/4 = 81 × 7/4 × 7 = 567/28 - Likewise, for the 2nd fraction, since 7 × 4 = 28,
56/7 = 56 × 4/7 × 4 = 224/28 - Subtract the two like fractions:
567/28 - 224/28 = 567 - 224/28 = 343/28 - After reducing the fraction, the answer is 49/4
- In mixed form: 121/4
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