Add 30/9 and 21/25
1st number: 3 3/9, 2nd number: 21/25
30/9 + 21/25 is 313/75.
Steps for adding fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 9 and 25 is 225
Next, find the equivalent fraction of both fractional numbers with denominator 225 - For the 1st fraction, since 9 × 25 = 225,
30/9 = 30 × 25/9 × 25 = 750/225 - Likewise, for the 2nd fraction, since 25 × 9 = 225,
21/25 = 21 × 9/25 × 9 = 189/225 - Add the two like fractions:
750/225 + 189/225 = 750 + 189/225 = 939/225 - 939/225 simplified gives 313/75
- So, 30/9 + 21/25 = 313/75
In mixed form: 413/75
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 60/9+21/25 30/9+42/25 30/18+21/25 30/9+21/50 90/9+21/25 30/9+63/25 30/27+21/25 30/9+21/75 30/45+21/25 30/63+21/25