Subtract 7/25 from 20/15
1st number: 1 5/15, 2nd number: 7/25
20/15 - 7/25 is 79/75.
Steps for subtracting fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 15 and 25 is 75
Next, find the equivalent fraction of both fractional numbers with denominator 75 - For the 1st fraction, since 15 × 5 = 75,
20/15 = 20 × 5/15 × 5 = 100/75 - Likewise, for the 2nd fraction, since 25 × 3 = 75,
7/25 = 7 × 3/25 × 3 = 21/75 - Subtract the two like fractions:
100/75 - 21/75 = 100 - 21/75 = 79/75 - In mixed form: 14/75
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 40/15-7/25 20/15-14/25 20/30-7/25 20/15-7/50 60/15-7/25 20/15-21/25 20/45-7/25 20/15-7/75 20/15-35/25 20/75-7/25 20/15-49/25