Add 20/9 and 28/60
1st number: 2 2/9, 2nd number: 28/60
20/9 + 28/60 is 121/45.
Steps for adding fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 9 and 60 is 180
Next, find the equivalent fraction of both fractional numbers with denominator 180 - For the 1st fraction, since 9 × 20 = 180,
20/9 = 20 × 20/9 × 20 = 400/180 - Likewise, for the 2nd fraction, since 60 × 3 = 180,
28/60 = 28 × 3/60 × 3 = 84/180 - Add the two like fractions:
400/180 + 84/180 = 400 + 84/180 = 484/180 - 484/180 simplified gives 121/45
- So, 20/9 + 28/60 = 121/45
In mixed form: 231/45
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 40/9+28/60 20/9+56/60 20/18+28/60 60/9+28/60 20/9+84/60 20/27+28/60 20/45+28/60 20/63+28/60