Subtract 3/40 from 63/98, Solve 63/98

Subtract 3/40 from 63/98

63/98 - 3/40 is 159/280.

Find the least common denominator or LCM of the two denominators:
LCM of 98 and 40 is 1960

Next, find the equivalent fraction of both fractional numbers with denominator 1960
For the 1st fraction, since 98 × 20 = 1960,
63/98 = 63 × 20/98 × 20 = 1260/1960
Likewise, for the 2nd fraction, since 40 × 49 = 1960,
3/40 = 3 × 49/40 × 49 = 147/1960
Subtract the two like fractions:
1260/1960 - 147/1960 = 1260 - 147/1960 = 1113/1960
After reducing the fraction, the answer is 159/280

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