Add 6/21 and 3/6
6/21 + 3/6 is 11/14.
Steps for adding fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 21 and 6 is 42
Next, find the equivalent fraction of both fractional numbers with denominator 42 - For the 1st fraction, since 21 × 2 = 42,
6/21 = 6 × 2/21 × 2 = 12/42 - Likewise, for the 2nd fraction, since 6 × 7 = 42,
3/6 = 3 × 7/6 × 7 = 21/42 - Add the two like fractions:
12/42 + 21/42 = 12 + 21/42 = 33/42 - 33/42 simplified gives 11/14
- So, 6/21 + 3/6 = 11/14
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 12/21+3/6 6/42+3/6 6/21+3/12 18/21+3/6 6/21+9/6 6/63+3/6 6/21+3/18 30/21+3/6 6/21+15/6 6/21+3/30 42/21+3/6 6/21+21/6 6/21+3/42