Subtract 81/84 from 4/98
4/98 - 81/84 is -181/196.
Steps for subtracting fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 98 and 84 is 588
Next, find the equivalent fraction of both fractional numbers with denominator 588 - For the 1st fraction, since 98 × 6 = 588,
4/98 = 4 × 6/98 × 6 = 24/588 - Likewise, for the 2nd fraction, since 84 × 7 = 588,
81/84 = 81 × 7/84 × 7 = 567/588 - Subtract the two like fractions:
24/588 - 567/588 = 24 - 567/588 = -543/588 - After reducing the fraction, the answer is -181/196
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