Add 6/3 and 21/9
1st number: 2 0/3, 2nd number: 2 3/9
6/3 + 21/9 is 13/3.
Steps for adding fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 3 and 9 is 9
Next, find the equivalent fraction of both fractional numbers with denominator 9 - For the 1st fraction, since 3 × 3 = 9,
6/3 = 6 × 3/3 × 3 = 18/9 - Likewise, for the 2nd fraction, since 9 × 1 = 9,
21/9 = 21 × 1/9 × 1 = 21/9 - Add the two like fractions:
18/9 + 21/9 = 18 + 21/9 = 39/9 - 39/9 simplified gives 13/3
- So, 6/3 + 21/9 = 13/3
In mixed form: 41/3
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 12/3+21/9 6/3+42/9 6/3+21/18 18/3+21/9 6/3+63/9 6/9+21/9 6/3+21/27 30/3+21/9 6/15+21/9 6/3+21/45 42/3+21/9 6/21+21/9 6/3+21/63