Add 20/9 and 30/8
1st number: 2 2/9, 2nd number: 3 6/8
20/9 + 30/8 is 215/36.
Steps for adding fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 9 and 8 is 72
Next, find the equivalent fraction of both fractional numbers with denominator 72 - For the 1st fraction, since 9 × 8 = 72,
20/9 = 20 × 8/9 × 8 = 160/72 - Likewise, for the 2nd fraction, since 8 × 9 = 72,
30/8 = 30 × 9/8 × 9 = 270/72 - Add the two like fractions:
160/72 + 270/72 = 160 + 270/72 = 430/72 - 430/72 simplified gives 215/36
- So, 20/9 + 30/8 = 215/36
In mixed form: 535/36
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 40/9+30/8 20/9+60/8 20/18+30/8 20/9+30/16 60/9+30/8 20/9+90/8 20/27+30/8 20/9+30/24 20/45+30/8 20/9+30/40 20/63+30/8 20/9+30/56