Subtract 81/12 from 4/98, Solve 4/98

Subtract 81/12 from 4/98

1^st number: 4/98, 2^nd number: 6 9/12

4/98 - 81/12 is -1315/196.

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,
4/98 = 4 × 6/98 × 6 = 24/588
Likewise, for the 2nd fraction, since 12 × 49 = 588,
81/12 = 81 × 49/12 × 49 = 3969/588
Subtract the two like fractions:
24/588 - 3969/588 = 24 - 3969/588 = -3945/588
After reducing the fraction, the answer is -1315/196

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