Add 28/35 and 20/9
1st number: 28/35, 2nd number: 2 2/9
28/35 + 20/9 is 136/45.
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,
20/9 = 20 × 35/9 × 35 = 700/315 - Add the two like fractions:
252/315 + 700/315 = 252 + 700/315 = 952/315 - 952/315 simplified gives 136/45
- So, 28/35 + 20/9 = 136/45
In mixed form: 31/45
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 56/35+20/9 28/35+40/9 28/70+20/9 28/35+20/18 84/35+20/9 28/35+60/9 28/35+20/27 28/35+20/45 28/35+20/63