Subtract 80/98 from 42/84
42/84 - 80/98 is -31/98.
Steps for subtracting fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 84 and 98 is 588
Next, find the equivalent fraction of both fractional numbers with denominator 588 - For the 1st fraction, since 84 × 7 = 588,
42/84 = 42 × 7/84 × 7 = 294/588 - Likewise, for the 2nd fraction, since 98 × 6 = 588,
80/98 = 80 × 6/98 × 6 = 480/588 - Subtract the two like fractions:
294/588 - 480/588 = 294 - 480/588 = -186/588 - After reducing the fraction, the answer is -31/98
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