Subtract 20/25 from 9/98, Solve 9/98

Subtract 20/25 from 9/98

9/98 - 20/25 is -347/490.

Find the least common denominator or LCM of the two denominators:
LCM of 98 and 25 is 2450

Next, find the equivalent fraction of both fractional numbers with denominator 2450
For the 1st fraction, since 98 × 25 = 2450,
9/98 = 9 × 25/98 × 25 = 225/2450
Likewise, for the 2nd fraction, since 25 × 98 = 2450,
20/25 = 20 × 98/25 × 98 = 1960/2450
Subtract the two like fractions:
225/2450 - 1960/2450 = 225 - 1960/2450 = -1735/2450
After reducing the fraction, the answer is -347/490

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