Add 1/21 and 7/6
1st number: 1/21, 2nd number: 1 1/6
1/21 + 7/6 is 17/14.
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,
1/21 = 1 × 2/21 × 2 = 2/42 - Likewise, for the 2nd fraction, since 6 × 7 = 42,
7/6 = 7 × 7/6 × 7 = 49/42 - Add the two like fractions:
2/42 + 49/42 = 2 + 49/42 = 51/42 - 51/42 simplified gives 17/14
- So, 1/21 + 7/6 = 17/14
In mixed form: 13/14
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 2/21+7/6 1/21+14/6 1/42+7/6 1/21+7/12 3/21+7/6 1/21+21/6 1/63+7/6 1/21+7/18 5/21+7/6 1/21+35/6 1/21+7/30 7/21+7/6 1/21+49/6 1/21+7/42