Add 75/90 and 28/9
1st number: 75/90, 2nd number: 3 1/9
75/90 + 28/9 is 71/18.
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,
75/90 = 75 × 1/90 × 1 = 75/90 - Likewise, for the 2nd fraction, since 9 × 10 = 90,
28/9 = 28 × 10/9 × 10 = 280/90 - Add the two like fractions:
75/90 + 280/90 = 75 + 280/90 = 355/90 - 355/90 simplified gives 71/18
- So, 75/90 + 28/9 = 71/18
In mixed form: 317/18
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 75/90+56/9 75/90+28/18 75/90+84/9 75/90+28/27 75/90+28/45 75/90+28/63