Add 4/24 and 21/18
1st number: 4/24, 2nd number: 1 3/18
4/24 + 21/18 is 4/3.
Steps for adding fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 24 and 18 is 72
Next, find the equivalent fraction of both fractional numbers with denominator 72 - For the 1st fraction, since 24 × 3 = 72,
4/24 = 4 × 3/24 × 3 = 12/72 - Likewise, for the 2nd fraction, since 18 × 4 = 72,
21/18 = 21 × 4/18 × 4 = 84/72 - Add the two like fractions:
12/72 + 84/72 = 12 + 84/72 = 96/72 - 96/72 simplified gives 4/3
- So, 4/24 + 21/18 = 4/3
In mixed form: 11/3
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 8/24+21/18 4/24+42/18 4/48+21/18 4/24+21/36 12/24+21/18 4/24+63/18 4/72+21/18 4/24+21/54 20/24+21/18 4/24+21/90 28/24+21/18