Add 28/9 and 21/35
1st number: 3 1/9, 2nd number: 21/35
28/9 + 21/35 is 167/45.
Steps for adding fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 9 and 35 is 315
Next, find the equivalent fraction of both fractional numbers with denominator 315 - For the 1st fraction, since 9 × 35 = 315,
28/9 = 28 × 35/9 × 35 = 980/315 - Likewise, for the 2nd fraction, since 35 × 9 = 315,
21/35 = 21 × 9/35 × 9 = 189/315 - Add the two like fractions:
980/315 + 189/315 = 980 + 189/315 = 1169/315 - 1169/315 simplified gives 167/45
- So, 28/9 + 21/35 = 167/45
In mixed form: 332/45
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 56/9+21/35 28/9+42/35 28/18+21/35 28/9+21/70 84/9+21/35 28/9+63/35 28/27+21/35 28/45+21/35 28/63+21/35