Add 6/21 and 5/6
6/21 + 5/6 is 47/42.
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,
6/21 = 6 × 2/21 × 2 = 12/42 - Likewise, for the 2nd fraction, since 6 × 7 = 42,
5/6 = 5 × 7/6 × 7 = 35/42 - Add the two like fractions:
12/42 + 35/42 = 12 + 35/42 = 47/42 - So, 6/21 + 5/6 = 47/42
In mixed form: 15/42
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 12/21+5/6 6/21+10/6 6/42+5/6 6/21+5/12 18/21+5/6 6/21+15/6 6/63+5/6 6/21+5/18 30/21+5/6 6/21+25/6 6/21+5/30 42/21+5/6 6/21+35/6 6/21+5/42