Add 21/24 and 9/8
1st number: 21/24, 2nd number: 1 1/8
21/24 + 9/8 is 2/1.
Steps for adding fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 24 and 8 is 24
Next, find the equivalent fraction of both fractional numbers with denominator 24 - For the 1st fraction, since 24 × 1 = 24,
21/24 = 21 × 1/24 × 1 = 21/24 - Likewise, for the 2nd fraction, since 8 × 3 = 24,
9/8 = 9 × 3/8 × 3 = 27/24 - Add the two like fractions:
21/24 + 27/24 = 21 + 27/24 = 48/24 - 48/24 simplified gives 2/1
- So, 21/24 + 9/8 = 2/1
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 42/24+9/8 21/24+18/8 21/48+9/8 21/24+9/16 63/24+9/8 21/24+27/8 21/72+9/8 21/24+9/24 21/24+45/8 21/24+9/40 21/24+63/8 21/24+9/56