Subtract 25/28 from 90/15
1st number: 6 0/15, 2nd number: 25/28
90/15 - 25/28 is 143/28.
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,
90/15 = 90 × 28/15 × 28 = 2520/420 - Likewise, for the 2nd fraction, since 28 × 15 = 420,
25/28 = 25 × 15/28 × 15 = 375/420 - Subtract the two like fractions:
2520/420 - 375/420 = 2520 - 375/420 = 2145/420 - After reducing the fraction, the answer is 143/28
- In mixed form: 53/28
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 90/15-50/28 90/30-25/28 90/15-25/56 90/15-75/28 90/45-25/28 90/15-25/84 90/75-25/28