Add 84/18 and 3/9
1st number: 4 12/18, 2nd number: 3/9
84/18 + 3/9 is 5/1.
Steps for adding fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 18 and 9 is 18
Next, find the equivalent fraction of both fractional numbers with denominator 18 - For the 1st fraction, since 18 × 1 = 18,
84/18 = 84 × 1/18 × 1 = 84/18 - Likewise, for the 2nd fraction, since 9 × 2 = 18,
3/9 = 3 × 2/9 × 2 = 6/18 - Add the two like fractions:
84/18 + 6/18 = 84 + 6/18 = 90/18 - 90/18 simplified gives 5/1
- So, 84/18 + 3/9 = 5/1
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 84/18+6/9 84/36+3/9 84/18+3/18 84/54+3/9 84/18+3/27 84/18+15/9 84/90+3/9 84/18+3/45 84/18+21/9 84/18+3/63