Add 15/2 and 28/15
1st number: 7 1/2, 2nd number: 1 13/15
15/2 + 28/15 is 281/30.
Steps for adding fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 2 and 15 is 30
Next, find the equivalent fraction of both fractional numbers with denominator 30 - For the 1st fraction, since 2 × 15 = 30,
15/2 = 15 × 15/2 × 15 = 225/30 - Likewise, for the 2nd fraction, since 15 × 2 = 30,
28/15 = 28 × 2/15 × 2 = 56/30 - Add the two like fractions:
225/30 + 56/30 = 225 + 56/30 = 281/30 - So, 15/2 + 28/15 = 281/30
In mixed form: 911/30
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 30/2+28/15 15/2+56/15 15/4+28/15 15/2+28/30 45/2+28/15 15/2+84/15 15/6+28/15 15/2+28/45 75/2+28/15 15/10+28/15 15/2+28/75 15/14+28/15