Add 21/9 and 28/50
1st number: 2 3/9, 2nd number: 28/50
21/9 + 28/50 is 217/75.
Steps for adding fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 9 and 50 is 450
Next, find the equivalent fraction of both fractional numbers with denominator 450 - For the 1st fraction, since 9 × 50 = 450,
21/9 = 21 × 50/9 × 50 = 1050/450 - Likewise, for the 2nd fraction, since 50 × 9 = 450,
28/50 = 28 × 9/50 × 9 = 252/450 - Add the two like fractions:
1050/450 + 252/450 = 1050 + 252/450 = 1302/450 - 1302/450 simplified gives 217/75
- So, 21/9 + 28/50 = 217/75
In mixed form: 267/75
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 42/9+28/50 21/9+56/50 21/18+28/50 63/9+28/50 21/9+84/50 21/27+28/50 21/45+28/50 21/63+28/50