Add 21/8 and 20/6
1st number: 2 5/8, 2nd number: 3 2/6
21/8 + 20/6 is 143/24.
Steps for adding fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 8 and 6 is 24
Next, find the equivalent fraction of both fractional numbers with denominator 24 - For the 1st fraction, since 8 × 3 = 24,
21/8 = 21 × 3/8 × 3 = 63/24 - Likewise, for the 2nd fraction, since 6 × 4 = 24,
20/6 = 20 × 4/6 × 4 = 80/24 - Add the two like fractions:
63/24 + 80/24 = 63 + 80/24 = 143/24 - So, 21/8 + 20/6 = 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: 42/8+20/6 21/8+40/6 21/16+20/6 21/8+20/12 63/8+20/6 21/8+60/6 21/24+20/6 21/8+20/18 21/40+20/6 21/8+20/30 21/56+20/6 21/8+20/42