Add 30/21 and 28/10
1st number: 1 9/21, 2nd number: 2 8/10
30/21 + 28/10 is 148/35.
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,
28/10 = 28 × 21/10 × 21 = 588/210 - Add the two like fractions:
300/210 + 588/210 = 300 + 588/210 = 888/210 - 888/210 simplified gives 148/35
- So, 30/21 + 28/10 = 148/35
In mixed form: 48/35
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 60/21+28/10 30/21+56/10 30/42+28/10 30/21+28/20 90/21+28/10 30/21+84/10 30/63+28/10 30/21+28/30 30/21+28/50 30/21+28/70