Subtract 81/16 from 7/98
1st number: 7/98, 2nd number: 5 1/16
7/98 - 81/16 is -559/112.
Steps for subtracting fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 98 and 16 is 784
Next, find the equivalent fraction of both fractional numbers with denominator 784 - For the 1st fraction, since 98 × 8 = 784,
7/98 = 7 × 8/98 × 8 = 56/784 - Likewise, for the 2nd fraction, since 16 × 49 = 784,
81/16 = 81 × 49/16 × 49 = 3969/784 - Subtract the two like fractions:
56/784 - 3969/784 = 56 - 3969/784 = -3913/784 - After reducing the fraction, the answer is -559/112
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