Subtract 25/28 from 72/15
1st number: 4 12/15, 2nd number: 25/28
72/15 - 25/28 is 547/140.
Steps for subtracting fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 15 and 28 is 420
Next, find the equivalent fraction of both fractional numbers with denominator 420 - For the 1st fraction, since 15 × 28 = 420,
72/15 = 72 × 28/15 × 28 = 2016/420 - Likewise, for the 2nd fraction, since 28 × 15 = 420,
25/28 = 25 × 15/28 × 15 = 375/420 - Subtract the two like fractions:
2016/420 - 375/420 = 2016 - 375/420 = 1641/420 - After reducing the fraction, the answer is 547/140
- In mixed form: 3127/140
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 72/15-50/28 72/30-25/28 72/15-25/56 72/15-75/28 72/45-25/28 72/15-25/84 72/75-25/28