Add 30/20 and 2/9
1st number: 1 10/20, 2nd number: 2/9
30/20 + 2/9 is 31/18.
Steps for adding fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 20 and 9 is 180
Next, find the equivalent fraction of both fractional numbers with denominator 180 - For the 1st fraction, since 20 × 9 = 180,
30/20 = 30 × 9/20 × 9 = 270/180 - Likewise, for the 2nd fraction, since 9 × 20 = 180,
2/9 = 2 × 20/9 × 20 = 40/180 - Add the two like fractions:
270/180 + 40/180 = 270 + 40/180 = 310/180 - 310/180 simplified gives 31/18
- So, 30/20 + 2/9 = 31/18
In mixed form: 113/18
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 60/20+2/9 30/20+4/9 30/40+2/9 30/20+2/18 90/20+2/9 30/20+6/9 30/60+2/9 30/20+2/27 30/20+10/9 30/20+2/45 30/20+14/9 30/20+2/63