Add 21/28 and 2/6
21/28 + 2/6 is 13/12.
Steps for adding fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 28 and 6 is 84
Next, find the equivalent fraction of both fractional numbers with denominator 84 - For the 1st fraction, since 28 × 3 = 84,
21/28 = 21 × 3/28 × 3 = 63/84 - Likewise, for the 2nd fraction, since 6 × 14 = 84,
2/6 = 2 × 14/6 × 14 = 28/84 - Add the two like fractions:
63/84 + 28/84 = 63 + 28/84 = 91/84 - 91/84 simplified gives 13/12
- So, 21/28 + 2/6 = 13/12
In mixed form: 11/12
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 42/28+2/6 21/28+4/6 21/56+2/6 21/28+2/12 63/28+2/6 21/84+2/6 21/28+2/18 21/28+10/6 21/28+2/30 21/28+14/6 21/28+2/42