Subtract 42/3 from 20/98, Solve 20/98

Subtract 42/3 from 20/98

1^st number: 20/98, 2^nd number: 14 0/3

20/98 - 42/3 is -676/49.

Find the least common denominator or LCM of the two denominators:
LCM of 98 and 3 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 3 × 98 = 294,
42/3 = 42 × 98/3 × 98 = 4116/294
Subtract the two like fractions:
60/294 - 4116/294 = 60 - 4116/294 = -4056/294
After reducing the fraction, the answer is -676/49

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