Add 30/9 and 7/20
1st number: 3 3/9, 2nd number: 7/20
30/9 + 7/20 is 221/60.
Steps for adding fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 9 and 20 is 180
Next, find the equivalent fraction of both fractional numbers with denominator 180 - For the 1st fraction, since 9 × 20 = 180,
30/9 = 30 × 20/9 × 20 = 600/180 - Likewise, for the 2nd fraction, since 20 × 9 = 180,
7/20 = 7 × 9/20 × 9 = 63/180 - Add the two like fractions:
600/180 + 63/180 = 600 + 63/180 = 663/180 - 663/180 simplified gives 221/60
- So, 30/9 + 7/20 = 221/60
In mixed form: 341/60
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 60/9+7/20 30/9+14/20 30/18+7/20 30/9+7/40 90/9+7/20 30/9+21/20 30/27+7/20 30/9+7/60 30/9+35/20 30/45+7/20 30/9+49/20 30/63+7/20