Add 5/18 and 20/9
1st number: 5/18, 2nd number: 2 2/9
5/18 + 20/9 is 5/2.
Steps for adding fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 18 and 9 is 18
Next, find the equivalent fraction of both fractional numbers with denominator 18 - For the 1st fraction, since 18 × 1 = 18,
5/18 = 5 × 1/18 × 1 = 5/18 - Likewise, for the 2nd fraction, since 9 × 2 = 18,
20/9 = 20 × 2/9 × 2 = 40/18 - Add the two like fractions:
5/18 + 40/18 = 5 + 40/18 = 45/18 - 45/18 simplified gives 5/2
- So, 5/18 + 20/9 = 5/2
In mixed form: 21/2
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 10/18+20/9 5/18+40/9 5/36+20/9 5/18+20/18 15/18+20/9 5/18+60/9 5/54+20/9 5/18+20/27 25/18+20/9 5/90+20/9 5/18+20/45 35/18+20/9 5/18+20/63