Add 21/6 and 2/8
1st number: 3 3/6, 2nd number: 2/8
21/6 + 2/8 is 15/4.
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,
21/6 = 21 × 4/6 × 4 = 84/24 - Likewise, for the 2nd fraction, since 8 × 3 = 24,
2/8 = 2 × 3/8 × 3 = 6/24 - Add the two like fractions:
84/24 + 6/24 = 84 + 6/24 = 90/24 - 90/24 simplified gives 15/4
- So, 21/6 + 2/8 = 15/4
In mixed form: 33/4
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 42/6+2/8 21/6+4/8 21/12+2/8 21/6+2/16 63/6+2/8 21/6+6/8 21/18+2/8 21/6+2/24 21/6+10/8 21/30+2/8 21/6+2/40 21/6+14/8 21/42+2/8 21/6+2/56