Subtract 27/42 from 20/98, Solve 20/98

Subtract 27/42 from 20/98

20/98 - 27/42 is -43/98.

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

Next, find the equivalent fraction of both fractional numbers with denominator 294
For the 1st fraction, since 98 × 3 = 294,
20/98 = 20 × 3/98 × 3 = 60/294
Likewise, for the 2nd fraction, since 42 × 7 = 294,
27/42 = 27 × 7/42 × 7 = 189/294
Subtract the two like fractions:
60/294 - 189/294 = 60 - 189/294 = -129/294
After reducing the fraction, the answer is -43/98

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