Add 21/9 and 30/4
1st number: 2 3/9, 2nd number: 7 2/4
21/9 + 30/4 is 59/6.
Steps for adding fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 9 and 4 is 36
Next, find the equivalent fraction of both fractional numbers with denominator 36 - For the 1st fraction, since 9 × 4 = 36,
21/9 = 21 × 4/9 × 4 = 84/36 - Likewise, for the 2nd fraction, since 4 × 9 = 36,
30/4 = 30 × 9/4 × 9 = 270/36 - Add the two like fractions:
84/36 + 270/36 = 84 + 270/36 = 354/36 - 354/36 simplified gives 59/6
- So, 21/9 + 30/4 = 59/6
In mixed form: 95/6
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 42/9+30/4 21/9+60/4 21/18+30/4 21/9+30/8 63/9+30/4 21/9+90/4 21/27+30/4 21/9+30/12 21/45+30/4 21/9+30/20 21/63+30/4 21/9+30/28