Add 45/9 and 21/25
1st number: 5 0/9, 2nd number: 21/25
45/9 + 21/25 is 146/25.
Steps for adding fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 9 and 25 is 225
Next, find the equivalent fraction of both fractional numbers with denominator 225 - For the 1st fraction, since 9 × 25 = 225,
45/9 = 45 × 25/9 × 25 = 1125/225 - Likewise, for the 2nd fraction, since 25 × 9 = 225,
21/25 = 21 × 9/25 × 9 = 189/225 - Add the two like fractions:
1125/225 + 189/225 = 1125 + 189/225 = 1314/225 - 1314/225 simplified gives 146/25
- So, 45/9 + 21/25 = 146/25
In mixed form: 521/25
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 90/9+21/25 45/9+42/25 45/18+21/25 45/9+21/50 45/9+63/25 45/27+21/25 45/9+21/75 45/63+21/25