Subtract 21/12 from 6/98, Solve 6/98

Subtract 21/12 from 6/98

1^st number: 6/98, 2^nd number: 1 9/12

6/98 - 21/12 is -331/196.

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,
6/98 = 6 × 6/98 × 6 = 36/588
Likewise, for the 2nd fraction, since 12 × 49 = 588,
21/12 = 21 × 49/12 × 49 = 1029/588
Subtract the two like fractions:
36/588 - 1029/588 = 36 - 1029/588 = -993/588
After reducing the fraction, the answer is -331/196

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