Subtract 84/81 from 7/56
1st number: 7/56, 2nd number: 1 3/81
7/56 - 84/81 is -197/216.
Steps for subtracting fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 56 and 81 is 4536
Next, find the equivalent fraction of both fractional numbers with denominator 4536 - For the 1st fraction, since 56 × 81 = 4536,
7/56 = 7 × 81/56 × 81 = 567/4536 - Likewise, for the 2nd fraction, since 81 × 56 = 4536,
84/81 = 84 × 56/81 × 56 = 4704/4536 - Subtract the two like fractions:
567/4536 - 4704/4536 = 567 - 4704/4536 = -4137/4536 - After reducing the fraction, the answer is -197/216
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