Subtract 80/54 from 4/40, Solve 4/40

Subtract 80/54 from 4/40

1^st number: 4/40, 2^nd number: 1 26/54

4/40 - 80/54 is -373/270.

Find the least common denominator or LCM of the two denominators:
LCM of 40 and 54 is 1080

Next, find the equivalent fraction of both fractional numbers with denominator 1080
For the 1st fraction, since 40 × 27 = 1080,
4/40 = 4 × 27/40 × 27 = 108/1080
Likewise, for the 2nd fraction, since 54 × 20 = 1080,
80/54 = 80 × 20/54 × 20 = 1600/1080
Subtract the two like fractions:
108/1080 - 1600/1080 = 108 - 1600/1080 = -1492/1080
After reducing the fraction, the answer is -373/270

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