Add 30/21 and 6/10
1st number: 1 9/21, 2nd number: 6/10
30/21 + 6/10 is 71/35.
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,
30/21 = 30 × 10/21 × 10 = 300/210 - Likewise, for the 2nd fraction, since 10 × 21 = 210,
6/10 = 6 × 21/10 × 21 = 126/210 - Add the two like fractions:
300/210 + 126/210 = 300 + 126/210 = 426/210 - 426/210 simplified gives 71/35
- So, 30/21 + 6/10 = 71/35
In mixed form: 21/35
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 60/21+6/10 30/21+12/10 30/42+6/10 30/21+6/20 90/21+6/10 30/21+18/10 30/63+6/10 30/21+6/30 30/21+30/10 30/21+6/50 30/21+42/10 30/21+6/70