Subtract 81/8 from 7/49
1st number: 7/49, 2nd number: 10 1/8
7/49 - 81/8 is -559/56.
Steps for subtracting fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 49 and 8 is 392
Next, find the equivalent fraction of both fractional numbers with denominator 392 - For the 1st fraction, since 49 × 8 = 392,
7/49 = 7 × 8/49 × 8 = 56/392 - Likewise, for the 2nd fraction, since 8 × 49 = 392,
81/8 = 81 × 49/8 × 49 = 3969/392 - Subtract the two like fractions:
56/392 - 3969/392 = 56 - 3969/392 = -3913/392 - After reducing the fraction, the answer is -559/56
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