Subtract 4/24 from 25/18, Solve 1 7/18

Subtract 4/24 from 25/18

1^st number: 1 7/18, 2^nd number: 4/24

25/18 - 4/24 is 11/9.

Find the least common denominator or LCM of the two denominators:
LCM of 18 and 24 is 72

Next, find the equivalent fraction of both fractional numbers with denominator 72
For the 1st fraction, since 18 × 4 = 72,
25/18 = 25 × 4/18 × 4 = 100/72
Likewise, for the 2nd fraction, since 24 × 3 = 72,
4/24 = 4 × 3/24 × 3 = 12/72
Subtract the two like fractions:
100/72 - 12/72 = 100 - 12/72 = 88/72
After reducing the fraction, the answer is 11/9
In mixed form: 12/9

MathStep (Works offline)

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