Add 6/21 and 15/10
1st number: 6/21, 2nd number: 1 5/10
6/21 + 15/10 is 25/14.
Steps for adding fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 21 and 10 is 210
Next, find the equivalent fraction of both fractional numbers with denominator 210 - For the 1st fraction, since 21 × 10 = 210,
6/21 = 6 × 10/21 × 10 = 60/210 - Likewise, for the 2nd fraction, since 10 × 21 = 210,
15/10 = 15 × 21/10 × 21 = 315/210 - Add the two like fractions:
60/210 + 315/210 = 60 + 315/210 = 375/210 - 375/210 simplified gives 25/14
- So, 6/21 + 15/10 = 25/14
In mixed form: 111/14
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 12/21+15/10 6/21+30/10 6/42+15/10 6/21+15/20 18/21+15/10 6/21+45/10 6/63+15/10 6/21+15/30 30/21+15/10 6/21+75/10 6/21+15/50 42/21+15/10 6/21+15/70