Subtract 25/80 from 7/18, Solve 7/18

Subtract 25/80 from 7/18

7/18 - 25/80 is 11/144.

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,
7/18 = 7 × 40/18 × 40 = 280/720
Likewise, for the 2nd fraction, since 80 × 9 = 720,
25/80 = 25 × 9/80 × 9 = 225/720
Subtract the two like fractions:
280/720 - 225/720 = 280 - 225/720 = 55/720
After reducing the fraction, the answer is 11/144

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