Subtract 1/80 from 12/54, Solve 12/54

Subtract 1/80 from 12/54

12/54 - 1/80 is 151/720.

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

Next, find the equivalent fraction of both fractional numbers with denominator 2160
For the 1st fraction, since 54 × 40 = 2160,
12/54 = 12 × 40/54 × 40 = 480/2160
Likewise, for the 2nd fraction, since 80 × 27 = 2160,
1/80 = 1 × 27/80 × 27 = 27/2160
Subtract the two like fractions:
480/2160 - 27/2160 = 480 - 27/2160 = 453/2160
After reducing the fraction, the answer is 151/720

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