Add 18/3 and 84/90
1st number: 6 0/3, 2nd number: 84/90
18/3 + 84/90 is 104/15.
Steps for adding fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 3 and 90 is 90
Next, find the equivalent fraction of both fractional numbers with denominator 90 - For the 1st fraction, since 3 × 30 = 90,
18/3 = 18 × 30/3 × 30 = 540/90 - Likewise, for the 2nd fraction, since 90 × 1 = 90,
84/90 = 84 × 1/90 × 1 = 84/90 - Add the two like fractions:
540/90 + 84/90 = 540 + 84/90 = 624/90 - 624/90 simplified gives 104/15
- So, 18/3 + 84/90 = 104/15
In mixed form: 614/15
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 36/3+84/90 18/6+84/90 54/3+84/90 18/9+84/90 90/3+84/90 18/15+84/90 18/21+84/90