Add 14/18 and 21/9
1st number: 14/18, 2nd number: 2 3/9
14/18 + 21/9 is 28/9.
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,
14/18 = 14 × 1/18 × 1 = 14/18 - Likewise, for the 2nd fraction, since 9 × 2 = 18,
21/9 = 21 × 2/9 × 2 = 42/18 - Add the two like fractions:
14/18 + 42/18 = 14 + 42/18 = 56/18 - 56/18 simplified gives 28/9
- So, 14/18 + 21/9 = 28/9
In mixed form: 31/9
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 28/18+21/9 14/18+42/9 14/36+21/9 14/18+21/18 42/18+21/9 14/18+63/9 14/54+21/9 14/18+21/27 70/18+21/9 14/90+21/9 14/18+21/45 98/18+21/9 14/18+21/63