Subtract 15/30 from 28/15
1st number: 1 13/15, 2nd number: 15/30
28/15 - 15/30 is 41/30.
Steps for subtracting fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 15 and 30 is 30
Next, find the equivalent fraction of both fractional numbers with denominator 30 - For the 1st fraction, since 15 × 2 = 30,
28/15 = 28 × 2/15 × 2 = 56/30 - Likewise, for the 2nd fraction, since 30 × 1 = 30,
15/30 = 15 × 1/30 × 1 = 15/30 - Subtract the two like fractions:
56/30 - 15/30 = 56 - 15/30 = 41/30 - In mixed form: 111/30
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 56/15-15/30 28/30-15/30 28/15-15/60 84/15-15/30 28/15-45/30 28/45-15/30 28/15-15/90 28/15-75/30 28/75-15/30