Add 24/9 and 21/20
1st number: 2 6/9, 2nd number: 1 1/20
24/9 + 21/20 is 223/60.
Steps for adding fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 9 and 20 is 180
Next, find the equivalent fraction of both fractional numbers with denominator 180 - For the 1st fraction, since 9 × 20 = 180,
24/9 = 24 × 20/9 × 20 = 480/180 - Likewise, for the 2nd fraction, since 20 × 9 = 180,
21/20 = 21 × 9/20 × 9 = 189/180 - Add the two like fractions:
480/180 + 189/180 = 480 + 189/180 = 669/180 - 669/180 simplified gives 223/60
- So, 24/9 + 21/20 = 223/60
In mixed form: 343/60
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 48/9+21/20 24/9+42/20 24/18+21/20 24/9+21/40 72/9+21/20 24/9+63/20 24/27+21/20 24/9+21/60 24/45+21/20 24/63+21/20