Subtract 21/98 from 2/12, Solve 2/12

Subtract 21/98 from 2/12

2/12 - 21/98 is -1/21.

Find the least common denominator or LCM of the two denominators:
LCM of 12 and 98 is 588

Next, find the equivalent fraction of both fractional numbers with denominator 588
For the 1st fraction, since 12 × 49 = 588,
2/12 = 2 × 49/12 × 49 = 98/588
Likewise, for the 2nd fraction, since 98 × 6 = 588,
21/98 = 21 × 6/98 × 6 = 126/588
Subtract the two like fractions:
98/588 - 126/588 = 98 - 126/588 = -28/588
After reducing the fraction, the answer is -1/21

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