Add 90/75 and 15/9
1st number: 1 15/75, 2nd number: 1 6/9
90/75 + 15/9 is 43/15.
Steps for adding fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 75 and 9 is 225
Next, find the equivalent fraction of both fractional numbers with denominator 225 - For the 1st fraction, since 75 × 3 = 225,
90/75 = 90 × 3/75 × 3 = 270/225 - Likewise, for the 2nd fraction, since 9 × 25 = 225,
15/9 = 15 × 25/9 × 25 = 375/225 - Add the two like fractions:
270/225 + 375/225 = 270 + 375/225 = 645/225 - 645/225 simplified gives 43/15
- So, 90/75 + 15/9 = 43/15
In mixed form: 213/15
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 90/75+30/9 90/75+15/18 90/75+45/9 90/75+15/27 90/75+75/9 90/75+15/45 90/75+15/63