Add 15/90 and 15/9
1st number: 15/90, 2nd number: 1 6/9
15/90 + 15/9 is 11/6.
Steps for adding fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 90 and 9 is 90
Next, find the equivalent fraction of both fractional numbers with denominator 90 - For the 1st fraction, since 90 × 1 = 90,
15/90 = 15 × 1/90 × 1 = 15/90 - Likewise, for the 2nd fraction, since 9 × 10 = 90,
15/9 = 15 × 10/9 × 10 = 150/90 - Add the two like fractions:
15/90 + 150/90 = 15 + 150/90 = 165/90 - 165/90 simplified gives 11/6
- So, 15/90 + 15/9 = 11/6
In mixed form: 15/6
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 30/90+15/9 15/90+30/9 15/90+15/18 45/90+15/9 15/90+45/9 15/90+15/27 75/90+15/9 15/90+75/9 15/90+15/45 15/90+15/63