Subtract 80/54 from 9/25, Solve 9/25

Subtract 80/54 from 9/25

1^st number: 9/25, 2^nd number: 1 26/54

9/25 - 80/54 is -757/675.

Find the least common denominator or LCM of the two denominators:
LCM of 25 and 54 is 1350

Next, find the equivalent fraction of both fractional numbers with denominator 1350
For the 1st fraction, since 25 × 54 = 1350,
9/25 = 9 × 54/25 × 54 = 486/1350
Likewise, for the 2nd fraction, since 54 × 25 = 1350,
80/54 = 80 × 25/54 × 25 = 2000/1350
Subtract the two like fractions:
486/1350 - 2000/1350 = 486 - 2000/1350 = -1514/1350
After reducing the fraction, the answer is -757/675

MathStep (Works offline)

Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad