Add 21/50 and 28/9
1st number: 21/50, 2nd number: 3 1/9
21/50 + 28/9 is 1589/450.
Steps for adding fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 50 and 9 is 450
Next, find the equivalent fraction of both fractional numbers with denominator 450 - For the 1st fraction, since 50 × 9 = 450,
21/50 = 21 × 9/50 × 9 = 189/450 - Likewise, for the 2nd fraction, since 9 × 50 = 450,
28/9 = 28 × 50/9 × 50 = 1400/450 - Add the two like fractions:
189/450 + 1400/450 = 189 + 1400/450 = 1589/450 - So, 21/50 + 28/9 = 1589/450
In mixed form: 3239/450
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 42/50+28/9 21/50+56/9 21/50+28/18 63/50+28/9 21/50+84/9 21/50+28/27 21/50+28/45 21/50+28/63