Subtract 20/5 from 5/98, Solve 5/98

Subtract 20/5 from 5/98

1^st number: 5/98, 2^nd number: 4 0/5

5/98 - 20/5 is -387/98.

Find the least common denominator or LCM of the two denominators:
LCM of 98 and 5 is 490

Next, find the equivalent fraction of both fractional numbers with denominator 490
For the 1st fraction, since 98 × 5 = 490,
5/98 = 5 × 5/98 × 5 = 25/490
Likewise, for the 2nd fraction, since 5 × 98 = 490,
20/5 = 20 × 98/5 × 98 = 1960/490
Subtract the two like fractions:
25/490 - 1960/490 = 25 - 1960/490 = -1935/490
After reducing the fraction, the answer is -387/98

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