Subtract 63/42 from 25/98, Solve 25/98

Subtract 63/42 from 25/98

1^st number: 25/98, 2^nd number: 1 21/42

25/98 - 63/42 is -61/49.

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,
25/98 = 25 × 3/98 × 3 = 75/294
Likewise, for the 2nd fraction, since 42 × 7 = 294,
63/42 = 63 × 7/42 × 7 = 441/294
Subtract the two like fractions:
75/294 - 441/294 = 75 - 441/294 = -366/294
After reducing the fraction, the answer is -61/49

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