Add 20/3 and 21/10
1st number: 6 2/3, 2nd number: 2 1/10
20/3 + 21/10 is 263/30.
Steps for adding fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 3 and 10 is 30
Next, find the equivalent fraction of both fractional numbers with denominator 30 - For the 1st fraction, since 3 × 10 = 30,
20/3 = 20 × 10/3 × 10 = 200/30 - Likewise, for the 2nd fraction, since 10 × 3 = 30,
21/10 = 21 × 3/10 × 3 = 63/30 - Add the two like fractions:
200/30 + 63/30 = 200 + 63/30 = 263/30 - So, 20/3 + 21/10 = 263/30
In mixed form: 823/30
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 40/3+21/10 20/3+42/10 20/6+21/10 20/3+21/20 60/3+21/10 20/3+63/10 20/9+21/10 20/3+21/30 20/15+21/10 20/3+21/50 20/21+21/10 20/3+21/70