Add 21/6 and 28/14
1st number: 3 3/6, 2nd number: 2 0/14
21/6 + 28/14 is 11/2.
Steps for adding fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 6 and 14 is 42
Next, find the equivalent fraction of both fractional numbers with denominator 42 - For the 1st fraction, since 6 × 7 = 42,
21/6 = 21 × 7/6 × 7 = 147/42 - Likewise, for the 2nd fraction, since 14 × 3 = 42,
28/14 = 28 × 3/14 × 3 = 84/42 - Add the two like fractions:
147/42 + 84/42 = 147 + 84/42 = 231/42 - 231/42 simplified gives 11/2
- So, 21/6 + 28/14 = 11/2
In mixed form: 51/2
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 42/6+28/14 21/6+56/14 21/12+28/14 63/6+28/14 21/6+84/14 21/18+28/14 21/6+28/42 21/30+28/14 21/6+28/70 21/42+28/14 21/6+28/98