Subtract 6/40 from 7/98, Solve 7/98

Subtract 6/40 from 7/98

7/98 - 6/40 is -11/140.

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,
7/98 = 7 × 20/98 × 20 = 140/1960
Likewise, for the 2nd fraction, since 40 × 49 = 1960,
6/40 = 6 × 49/40 × 49 = 294/1960
Subtract the two like fractions:
140/1960 - 294/1960 = 140 - 294/1960 = -154/1960
After reducing the fraction, the answer is -11/140

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