Add 18/9 and 27/90
1st number: 2 0/9, 2nd number: 27/90
18/9 + 27/90 is 23/10.
Steps for adding fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 9 and 90 is 90
Next, find the equivalent fraction of both fractional numbers with denominator 90 - For the 1st fraction, since 9 × 10 = 90,
18/9 = 18 × 10/9 × 10 = 180/90 - Likewise, for the 2nd fraction, since 90 × 1 = 90,
27/90 = 27 × 1/90 × 1 = 27/90 - Add the two like fractions:
180/90 + 27/90 = 180 + 27/90 = 207/90 - 207/90 simplified gives 23/10
- So, 18/9 + 27/90 = 23/10
In mixed form: 23/10
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 36/9+27/90 18/9+54/90 54/9+27/90 18/9+81/90 18/27+27/90 90/9+27/90 18/45+27/90 18/63+27/90