Add 28/35 and 3/9
28/35 + 3/9 is 17/15.
Steps for adding fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 35 and 9 is 315
Next, find the equivalent fraction of both fractional numbers with denominator 315 - For the 1st fraction, since 35 × 9 = 315,
28/35 = 28 × 9/35 × 9 = 252/315 - Likewise, for the 2nd fraction, since 9 × 35 = 315,
3/9 = 3 × 35/9 × 35 = 105/315 - Add the two like fractions:
252/315 + 105/315 = 252 + 105/315 = 357/315 - 357/315 simplified gives 17/15
- So, 28/35 + 3/9 = 17/15
In mixed form: 12/15
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 56/35+3/9 28/35+6/9 28/70+3/9 28/35+3/18 84/35+3/9 28/35+3/27 28/35+15/9 28/35+3/45 28/35+21/9 28/35+3/63