Add 18/9 and 15/75
1st number: 2 0/9, 2nd number: 15/75
18/9 + 15/75 is 11/5.
Steps for adding fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 9 and 75 is 225
Next, find the equivalent fraction of both fractional numbers with denominator 225 - For the 1st fraction, since 9 × 25 = 225,
18/9 = 18 × 25/9 × 25 = 450/225 - Likewise, for the 2nd fraction, since 75 × 3 = 225,
15/75 = 15 × 3/75 × 3 = 45/225 - Add the two like fractions:
450/225 + 45/225 = 450 + 45/225 = 495/225 - 495/225 simplified gives 11/5
- So, 18/9 + 15/75 = 11/5
In mixed form: 21/5
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 36/9+15/75 18/9+30/75 54/9+15/75 18/9+45/75 18/27+15/75 90/9+15/75 18/45+15/75 18/63+15/75