Add 20/9 and 56/45
1st number: 2 2/9, 2nd number: 1 11/45
20/9 + 56/45 is 52/15.
Steps for adding fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 9 and 45 is 45
Next, find the equivalent fraction of both fractional numbers with denominator 45 - For the 1st fraction, since 9 × 5 = 45,
20/9 = 20 × 5/9 × 5 = 100/45 - Likewise, for the 2nd fraction, since 45 × 1 = 45,
56/45 = 56 × 1/45 × 1 = 56/45 - Add the two like fractions:
100/45 + 56/45 = 100 + 56/45 = 156/45 - 156/45 simplified gives 52/15
- So, 20/9 + 56/45 = 52/15
In mixed form: 37/15
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 40/9+56/45 20/18+56/45 20/9+56/90 60/9+56/45 20/27+56/45 20/45+56/45 20/63+56/45