Subtract 80/49 from 5/40, Solve 5/40

Subtract 80/49 from 5/40

1^st number: 5/40, 2^nd number: 1 31/49

5/40 - 80/49 is -591/392.

Find the least common denominator or LCM of the two denominators:
LCM of 40 and 49 is 1960

Next, find the equivalent fraction of both fractional numbers with denominator 1960
For the 1st fraction, since 40 × 49 = 1960,
5/40 = 5 × 49/40 × 49 = 245/1960
Likewise, for the 2nd fraction, since 49 × 40 = 1960,
80/49 = 80 × 40/49 × 40 = 3200/1960
Subtract the two like fractions:
245/1960 - 3200/1960 = 245 - 3200/1960 = -2955/1960
After reducing the fraction, the answer is -591/392

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