Subtract 9/72 from 27/25, Solve 1 2/25

Subtract 9/72 from 27/25

1^st number: 1 2/25, 2^nd number: 9/72

27/25 - 9/72 is 191/200.

Find the least common denominator or LCM of the two denominators:
LCM of 25 and 72 is 1800

Next, find the equivalent fraction of both fractional numbers with denominator 1800
For the 1st fraction, since 25 × 72 = 1800,
27/25 = 27 × 72/25 × 72 = 1944/1800
Likewise, for the 2nd fraction, since 72 × 25 = 1800,
9/72 = 9 × 25/72 × 25 = 225/1800
Subtract the two like fractions:
1944/1800 - 225/1800 = 1944 - 225/1800 = 1719/1800
After reducing the fraction, the answer is 191/200

MathStep (Works offline)

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