Add 28/30 and 21/50
28/30 + 21/50 is 203/150.
Steps for adding fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 30 and 50 is 150
Next, find the equivalent fraction of both fractional numbers with denominator 150 - For the 1st fraction, since 30 × 5 = 150,
28/30 = 28 × 5/30 × 5 = 140/150 - Likewise, for the 2nd fraction, since 50 × 3 = 150,
21/50 = 21 × 3/50 × 3 = 63/150 - Add the two like fractions:
140/150 + 63/150 = 140 + 63/150 = 203/150 - So, 28/30 + 21/50 = 203/150
In mixed form: 153/150
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 56/30+21/50 28/30+42/50 28/60+21/50 84/30+21/50 28/30+63/50 28/90+21/50