Add 9/8 and 21/50
1st number: 1 1/8, 2nd number: 21/50
9/8 + 21/50 is 309/200.
Steps for adding fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 8 and 50 is 200
Next, find the equivalent fraction of both fractional numbers with denominator 200 - For the 1st fraction, since 8 × 25 = 200,
9/8 = 9 × 25/8 × 25 = 225/200 - Likewise, for the 2nd fraction, since 50 × 4 = 200,
21/50 = 21 × 4/50 × 4 = 84/200 - Add the two like fractions:
225/200 + 84/200 = 225 + 84/200 = 309/200 - So, 9/8 + 21/50 = 309/200
In mixed form: 1109/200
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 18/8+21/50 9/8+42/50 9/16+21/50 27/8+21/50 9/8+63/50 9/24+21/50 45/8+21/50 9/40+21/50 63/8+21/50 9/56+21/50