Add 28/9 and 20/30
1st number: 3 1/9, 2nd number: 20/30
28/9 + 20/30 is 34/9.
Steps for adding fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 9 and 30 is 90
Next, find the equivalent fraction of both fractional numbers with denominator 90 - For the 1st fraction, since 9 × 10 = 90,
28/9 = 28 × 10/9 × 10 = 280/90 - Likewise, for the 2nd fraction, since 30 × 3 = 90,
20/30 = 20 × 3/30 × 3 = 60/90 - Add the two like fractions:
280/90 + 60/90 = 280 + 60/90 = 340/90 - 340/90 simplified gives 34/9
- So, 28/9 + 20/30 = 34/9
In mixed form: 37/9
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 56/9+20/30 28/9+40/30 28/18+20/30 28/9+20/60 84/9+20/30 28/9+60/30 28/27+20/30 28/9+20/90 28/45+20/30 28/63+20/30