Add 40/3 and 21/8
1st number: 13 1/3, 2nd number: 2 5/8
40/3 + 21/8 is 383/24.
Steps for adding fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 3 and 8 is 24
Next, find the equivalent fraction of both fractional numbers with denominator 24 - For the 1st fraction, since 3 × 8 = 24,
40/3 = 40 × 8/3 × 8 = 320/24 - Likewise, for the 2nd fraction, since 8 × 3 = 24,
21/8 = 21 × 3/8 × 3 = 63/24 - Add the two like fractions:
320/24 + 63/24 = 320 + 63/24 = 383/24 - So, 40/3 + 21/8 = 383/24
In mixed form: 1523/24
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 80/3+21/8 40/3+42/8 40/6+21/8 40/3+21/16 40/3+63/8 40/9+21/8 40/3+21/24 40/15+21/8 40/3+21/40 40/21+21/8 40/3+21/56