Subtract 80/98 from 5/80, Solve 5/80

Subtract 80/98 from 5/80

5/80 - 80/98 is -591/784.

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

Next, find the equivalent fraction of both fractional numbers with denominator 3920
For the 1st fraction, since 80 × 49 = 3920,
5/80 = 5 × 49/80 × 49 = 245/3920
Likewise, for the 2nd fraction, since 98 × 40 = 3920,
80/98 = 80 × 40/98 × 40 = 3200/3920
Subtract the two like fractions:
245/3920 - 3200/3920 = 245 - 3200/3920 = -2955/3920
After reducing the fraction, the answer is -591/784

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