Add 18/90 and 9/10
18/90 + 9/10 is 11/10.
Steps for adding fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 90 and 10 is 90
Next, find the equivalent fraction of both fractional numbers with denominator 90 - For the 1st fraction, since 90 × 1 = 90,
18/90 = 18 × 1/90 × 1 = 18/90 - Likewise, for the 2nd fraction, since 10 × 9 = 90,
9/10 = 9 × 9/10 × 9 = 81/90 - Add the two like fractions:
18/90 + 81/90 = 18 + 81/90 = 99/90 - 99/90 simplified gives 11/10
- So, 18/90 + 9/10 = 11/10
In mixed form: 11/10
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 36/90+9/10 18/90+18/10 18/90+9/20 54/90+9/10 18/90+27/10 18/90+9/30 18/90+45/10 18/90+9/50 18/90+63/10 18/90+9/70