Add 9/8 and 21/25
1st number: 1 1/8, 2nd number: 21/25
9/8 + 21/25 is 393/200.
Steps for adding fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 8 and 25 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 25 × 8 = 200,
21/25 = 21 × 8/25 × 8 = 168/200 - Add the two like fractions:
225/200 + 168/200 = 225 + 168/200 = 393/200 - So, 9/8 + 21/25 = 393/200
In mixed form: 1193/200
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 18/8+21/25 9/8+42/25 9/16+21/25 9/8+21/50 27/8+21/25 9/8+63/25 9/24+21/25 9/8+21/75 45/8+21/25 9/40+21/25 63/8+21/25 9/56+21/25