Subtract 5/18 from 15/25
15/25 - 5/18 is 29/90.
Steps for subtracting fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 25 and 18 is 450
Next, find the equivalent fraction of both fractional numbers with denominator 450 - For the 1st fraction, since 25 × 18 = 450,
15/25 = 15 × 18/25 × 18 = 270/450 - Likewise, for the 2nd fraction, since 18 × 25 = 450,
5/18 = 5 × 25/18 × 25 = 125/450 - Subtract the two like fractions:
270/450 - 125/450 = 270 - 125/450 = 145/450 - After reducing the fraction, the answer is 29/90
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 30/25-5/18 15/25-10/18 15/50-5/18 15/25-5/36 45/25-5/18 15/25-15/18 15/75-5/18 15/25-5/54 75/25-5/18 15/25-25/18 15/25-5/90 15/25-35/18