Subtract 25/9 from 30/25, Solve 1 5/25

Subtract 25/9 from 30/25

1^st number: 1 5/25, 2^nd number: 2 7/9

30/25 - 25/9 is -71/45.

Find the least common denominator or LCM of the two denominators:
LCM of 25 and 9 is 225

Next, find the equivalent fraction of both fractional numbers with denominator 225
For the 1st fraction, since 25 × 9 = 225,
30/25 = 30 × 9/25 × 9 = 270/225
Likewise, for the 2nd fraction, since 9 × 25 = 225,
25/9 = 25 × 25/9 × 25 = 625/225
Subtract the two like fractions:
270/225 - 625/225 = 270 - 625/225 = -355/225
After reducing the fraction, the answer is -71/45

MathStep (Works offline)

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