Subtract 15/98 from 5/42, Solve 5/42

Subtract 15/98 from 5/42

5/42 - 15/98 is -5/147.

Find the least common denominator or LCM of the two denominators:
LCM of 42 and 98 is 294

Next, find the equivalent fraction of both fractional numbers with denominator 294
For the 1st fraction, since 42 × 7 = 294,
5/42 = 5 × 7/42 × 7 = 35/294
Likewise, for the 2nd fraction, since 98 × 3 = 294,
15/98 = 15 × 3/98 × 3 = 45/294
Subtract the two like fractions:
35/294 - 45/294 = 35 - 45/294 = -10/294
After reducing the fraction, the answer is -5/147

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