Subtract 4/80 from 4/98, Solve 4/98

Subtract 4/80 from 4/98

4/98 - 4/80 is -9/980.

Find the least common denominator or LCM of the two denominators:
LCM of 98 and 80 is 3920

Next, find the equivalent fraction of both fractional numbers with denominator 3920
For the 1st fraction, since 98 × 40 = 3920,
4/98 = 4 × 40/98 × 40 = 160/3920
Likewise, for the 2nd fraction, since 80 × 49 = 3920,
4/80 = 4 × 49/80 × 49 = 196/3920
Subtract the two like fractions:
160/3920 - 196/3920 = 160 - 196/3920 = -36/3920
After reducing the fraction, the answer is -9/980

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