Add 28/9 and 56/20
1st number: 3 1/9, 2nd number: 2 16/20
28/9 + 56/20 is 266/45.
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,
56/20 = 56 × 9/20 × 9 = 504/180 - Add the two like fractions:
560/180 + 504/180 = 560 + 504/180 = 1064/180 - 1064/180 simplified gives 266/45
- So, 28/9 + 56/20 = 266/45
In mixed form: 541/45
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 56/9+56/20 28/18+56/20 28/9+56/40 84/9+56/20 28/27+56/20 28/9+56/60 28/45+56/20 28/63+56/20