Subtract 42/25 from 4/98, Solve 4/98

Subtract 42/25 from 4/98

1^st number: 4/98, 2^nd number: 1 17/25

4/98 - 42/25 is -2008/1225.

Find the least common denominator or LCM of the two denominators:
LCM of 98 and 25 is 2450

Next, find the equivalent fraction of both fractional numbers with denominator 2450
For the 1st fraction, since 98 × 25 = 2450,
4/98 = 4 × 25/98 × 25 = 100/2450
Likewise, for the 2nd fraction, since 25 × 98 = 2450,
42/25 = 42 × 98/25 × 98 = 4116/2450
Subtract the two like fractions:
100/2450 - 4116/2450 = 100 - 4116/2450 = -4016/2450
After reducing the fraction, the answer is -2008/1225

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