Add 6/18 and 84/90
6/18 + 84/90 is 19/15.
Steps for adding fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 18 and 90 is 90
Next, find the equivalent fraction of both fractional numbers with denominator 90 - For the 1st fraction, since 18 × 5 = 90,
6/18 = 6 × 5/18 × 5 = 30/90 - Likewise, for the 2nd fraction, since 90 × 1 = 90,
84/90 = 84 × 1/90 × 1 = 84/90 - Add the two like fractions:
30/90 + 84/90 = 30 + 84/90 = 114/90 - 114/90 simplified gives 19/15
- So, 6/18 + 84/90 = 19/15
In mixed form: 14/15
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 12/18+84/90 6/36+84/90 6/54+84/90 30/18+84/90 6/90+84/90 42/18+84/90