Subtract 2/54 from 4/80, Solve 4/80

Subtract 2/54 from 4/80

4/80 - 2/54 is 7/540.

Find the least common denominator or LCM of the two denominators:
LCM of 80 and 54 is 2160

Next, find the equivalent fraction of both fractional numbers with denominator 2160
For the 1st fraction, since 80 × 27 = 2160,
4/80 = 4 × 27/80 × 27 = 108/2160
Likewise, for the 2nd fraction, since 54 × 40 = 2160,
2/54 = 2 × 40/54 × 40 = 80/2160
Subtract the two like fractions:
108/2160 - 80/2160 = 108 - 80/2160 = 28/2160
After reducing the fraction, the answer is 7/540

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