Subtract 7/9 from 25/80, Solve 25/80

Subtract 7/9 from 25/80

25/80 - 7/9 is -67/144.

Find the least common denominator or LCM of the two denominators:
LCM of 80 and 9 is 720

Next, find the equivalent fraction of both fractional numbers with denominator 720
For the 1st fraction, since 80 × 9 = 720,
25/80 = 25 × 9/80 × 9 = 225/720
Likewise, for the 2nd fraction, since 9 × 80 = 720,
7/9 = 7 × 80/9 × 80 = 560/720
Subtract the two like fractions:
225/720 - 560/720 = 225 - 560/720 = -335/720
After reducing the fraction, the answer is -67/144

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