Subtract 21/12 from 72/98
1st number: 72/98, 2nd number: 1 9/12
72/98 - 21/12 is -199/196.
Steps for subtracting fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 98 and 12 is 588
Next, find the equivalent fraction of both fractional numbers with denominator 588 - For the 1st fraction, since 98 × 6 = 588,
72/98 = 72 × 6/98 × 6 = 432/588 - Likewise, for the 2nd fraction, since 12 × 49 = 588,
21/12 = 21 × 49/12 × 49 = 1029/588 - Subtract the two like fractions:
432/588 - 1029/588 = 432 - 1029/588 = -597/588 - After reducing the fraction, the answer is -199/196
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