Add 21/28 and 1/6
21/28 + 1/6 is 11/12.
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,
1/6 = 1 × 14/6 × 14 = 14/84 - Add the two like fractions:
63/84 + 14/84 = 63 + 14/84 = 77/84 - 77/84 simplified gives 11/12
- So, 21/28 + 1/6 = 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+1/6 21/28+2/6 21/56+1/6 21/28+1/12 63/28+1/6 21/28+3/6 21/84+1/6 21/28+1/18 21/28+5/6 21/28+1/30 21/28+7/6 21/28+1/42