Add 28/9 and 5/20
1st number: 3 1/9, 2nd number: 5/20
28/9 + 5/20 is 121/36.
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,
28/9 = 28 × 20/9 × 20 = 560/180 - Likewise, for the 2nd fraction, since 20 × 9 = 180,
5/20 = 5 × 9/20 × 9 = 45/180 - Add the two like fractions:
560/180 + 45/180 = 560 + 45/180 = 605/180 - 605/180 simplified gives 121/36
- So, 28/9 + 5/20 = 121/36
In mixed form: 313/36
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 56/9+5/20 28/9+10/20 28/18+5/20 28/9+5/40 84/9+5/20 28/9+15/20 28/27+5/20 28/9+5/60 28/9+25/20 28/45+5/20 28/9+35/20 28/63+5/20