Add 10/3 and 8/21
1st number: 3 1/3, 2nd number: 8/21
10/3 + 8/21 is 26/7.
Steps for adding fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 3 and 21 is 21
Next, find the equivalent fraction of both fractional numbers with denominator 21 - For the 1st fraction, since 3 × 7 = 21,
10/3 = 10 × 7/3 × 7 = 70/21 - Likewise, for the 2nd fraction, since 21 × 1 = 21,
8/21 = 8 × 1/21 × 1 = 8/21 - Add the two like fractions:
70/21 + 8/21 = 70 + 8/21 = 78/21 - 78/21 simplified gives 26/7
- So, 10/3 + 8/21 = 26/7
In mixed form: 35/7
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 20/3+8/21 10/3+16/21 10/6+8/21 10/3+8/42 30/3+8/21 10/3+24/21 10/9+8/21 10/3+8/63 50/3+8/21 10/3+40/21 10/15+8/21 70/3+8/21 10/3+56/21 10/21+8/21