Subtract 72/4 from 3/98, Solve 3/98

Subtract 72/4 from 3/98

1^st number: 3/98, 2^nd number: 18 0/4

3/98 - 72/4 is -1761/98.

Find the least common denominator or LCM of the two denominators:
LCM of 98 and 4 is 196

Next, find the equivalent fraction of both fractional numbers with denominator 196
For the 1st fraction, since 98 × 2 = 196,
3/98 = 3 × 2/98 × 2 = 6/196
Likewise, for the 2nd fraction, since 4 × 49 = 196,
72/4 = 72 × 49/4 × 49 = 3528/196
Subtract the two like fractions:
6/196 - 3528/196 = 6 - 3528/196 = -3522/196
After reducing the fraction, the answer is -1761/98

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