Add 5/18 and 21/3
1st number: 5/18, 2nd number: 7 0/3
5/18 + 21/3 is 131/18.
Steps for adding fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 18 and 3 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 3 × 6 = 18,
21/3 = 21 × 6/3 × 6 = 126/18 - Add the two like fractions:
5/18 + 126/18 = 5 + 126/18 = 131/18 - So, 5/18 + 21/3 = 131/18
In mixed form: 75/18
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 10/18+21/3 5/18+42/3 5/36+21/3 5/18+21/6 15/18+21/3 5/18+63/3 5/54+21/3 5/18+21/9 25/18+21/3 5/90+21/3 5/18+21/15 35/18+21/3