Subtract 12/80 from 12/18, Solve 12/18

Subtract 12/80 from 12/18

12/18 - 12/80 is 31/60.

Find the least common denominator or LCM of the two denominators:
LCM of 18 and 80 is 720

Next, find the equivalent fraction of both fractional numbers with denominator 720
For the 1st fraction, since 18 × 40 = 720,
12/18 = 12 × 40/18 × 40 = 480/720
Likewise, for the 2nd fraction, since 80 × 9 = 720,
12/80 = 12 × 9/80 × 9 = 108/720
Subtract the two like fractions:
480/720 - 108/720 = 480 - 108/720 = 372/720
After reducing the fraction, the answer is 31/60

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