Subtract 80/49 from 42/84
1st number: 42/84, 2nd number: 1 31/49
42/84 - 80/49 is -111/98.
Steps for subtracting fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 84 and 49 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 49 × 12 = 588,
80/49 = 80 × 12/49 × 12 = 960/588 - Subtract the two like fractions:
294/588 - 960/588 = 294 - 960/588 = -666/588 - After reducing the fraction, the answer is -111/98
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Related: 42/84-80/98