Add 5/6 and 2/21
5/6 + 2/21 is 13/14.
Steps for adding fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 6 and 21 is 42
Next, find the equivalent fraction of both fractional numbers with denominator 42 - For the 1st fraction, since 6 × 7 = 42,
5/6 = 5 × 7/6 × 7 = 35/42 - Likewise, for the 2nd fraction, since 21 × 2 = 42,
2/21 = 2 × 2/21 × 2 = 4/42 - Add the two like fractions:
35/42 + 4/42 = 35 + 4/42 = 39/42 - 39/42 simplified gives 13/14
- So, 5/6 + 2/21 = 13/14
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 10/6+2/21 5/6+4/21 5/12+2/21 5/6+2/42 15/6+2/21 5/6+6/21 5/18+2/21 5/6+2/63 25/6+2/21 5/6+10/21 5/30+2/21 35/6+2/21 5/6+14/21 5/42+2/21