Add 7/14 and 6/21
7/14 + 6/21 is 11/14.
Steps for adding fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 14 and 21 is 42
Next, find the equivalent fraction of both fractional numbers with denominator 42 - For the 1st fraction, since 14 × 3 = 42,
7/14 = 7 × 3/14 × 3 = 21/42 - Likewise, for the 2nd fraction, since 21 × 2 = 42,
6/21 = 6 × 2/21 × 2 = 12/42 - Add the two like fractions:
21/42 + 12/42 = 21 + 12/42 = 33/42 - 33/42 simplified gives 11/14
- So, 7/14 + 6/21 = 11/14
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 7/14+12/21 7/28+6/21 7/14+6/42 21/14+6/21 7/14+18/21 7/42+6/21 7/14+6/63 35/14+6/21 7/14+30/21 7/70+6/21 49/14+6/21 7/14+42/21 7/98+6/21