Add 15/6 and 21/10
1st number: 2 3/6, 2nd number: 2 1/10
15/6 + 21/10 is 23/5.
Steps for adding fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 6 and 10 is 30
Next, find the equivalent fraction of both fractional numbers with denominator 30 - For the 1st fraction, since 6 × 5 = 30,
15/6 = 15 × 5/6 × 5 = 75/30 - Likewise, for the 2nd fraction, since 10 × 3 = 30,
21/10 = 21 × 3/10 × 3 = 63/30 - Add the two like fractions:
75/30 + 63/30 = 75 + 63/30 = 138/30 - 138/30 simplified gives 23/5
- So, 15/6 + 21/10 = 23/5
In mixed form: 43/5
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 30/6+21/10 15/6+42/10 15/12+21/10 15/6+21/20 45/6+21/10 15/6+63/10 15/18+21/10 15/6+21/30 75/6+21/10 15/30+21/10 15/6+21/50 15/42+21/10 15/6+21/70