Subtract 28/5 from 9/15
1st number: 9/15, 2nd number: 5 3/5
9/15 - 28/5 is -5/1.
Steps for subtracting fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 15 and 5 is 15
Next, find the equivalent fraction of both fractional numbers with denominator 15 - For the 1st fraction, since 15 × 1 = 15,
9/15 = 9 × 1/15 × 1 = 9/15 - Likewise, for the 2nd fraction, since 5 × 3 = 15,
28/5 = 28 × 3/5 × 3 = 84/15 - Subtract the two like fractions:
9/15 - 84/15 = 9 - 84/15 = -75/15 - After reducing the fraction, the answer is -5/1
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 18/15-28/5 9/15-56/5 9/30-28/5 9/15-28/10 27/15-28/5 9/15-84/5 9/45-28/5 9/15-28/15 45/15-28/5 9/75-28/5 9/15-28/25 63/15-28/5 9/15-28/35