Add 20/6 and 21/8
1st number: 3 2/6, 2nd number: 2 5/8
20/6 + 21/8 is 143/24.
Steps for adding fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 6 and 8 is 24
Next, find the equivalent fraction of both fractional numbers with denominator 24 - For the 1st fraction, since 6 × 4 = 24,
20/6 = 20 × 4/6 × 4 = 80/24 - Likewise, for the 2nd fraction, since 8 × 3 = 24,
21/8 = 21 × 3/8 × 3 = 63/24 - Add the two like fractions:
80/24 + 63/24 = 80 + 63/24 = 143/24 - So, 20/6 + 21/8 = 143/24
In mixed form: 523/24
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 40/6+21/8 20/6+42/8 20/12+21/8 20/6+21/16 60/6+21/8 20/6+63/8 20/18+21/8 20/6+21/24 20/30+21/8 20/6+21/40 20/42+21/8 20/6+21/56