Subtract 12/80 from 18/98, Solve 18/98

Subtract 12/80 from 18/98

18/98 - 12/80 is 33/980.

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,
18/98 = 18 × 40/98 × 40 = 720/3920
Likewise, for the 2nd fraction, since 80 × 49 = 3920,
12/80 = 12 × 49/80 × 49 = 588/3920
Subtract the two like fractions:
720/3920 - 588/3920 = 720 - 588/3920 = 132/3920
After reducing the fraction, the answer is 33/980

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