Add 21/54 and 14/9
1st number: 21/54, 2nd number: 1 5/9
21/54 + 14/9 is 35/18.
Steps for adding fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 54 and 9 is 54
Next, find the equivalent fraction of both fractional numbers with denominator 54 - For the 1st fraction, since 54 × 1 = 54,
21/54 = 21 × 1/54 × 1 = 21/54 - Likewise, for the 2nd fraction, since 9 × 6 = 54,
14/9 = 14 × 6/9 × 6 = 84/54 - Add the two like fractions:
21/54 + 84/54 = 21 + 84/54 = 105/54 - 105/54 simplified gives 35/18
- So, 21/54 + 14/9 = 35/18
In mixed form: 117/18
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 42/54+14/9 21/54+28/9 21/54+14/18 63/54+14/9 21/54+42/9 21/54+14/27 21/54+70/9 21/54+14/45 21/54+98/9 21/54+14/63