Add 3/12 and 84/18
1st number: 3/12, 2nd number: 4 12/18
3/12 + 84/18 is 59/12.
Steps for adding fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 12 and 18 is 36
Next, find the equivalent fraction of both fractional numbers with denominator 36 - For the 1st fraction, since 12 × 3 = 36,
3/12 = 3 × 3/12 × 3 = 9/36 - Likewise, for the 2nd fraction, since 18 × 2 = 36,
84/18 = 84 × 2/18 × 2 = 168/36 - Add the two like fractions:
9/36 + 168/36 = 9 + 168/36 = 177/36 - 177/36 simplified gives 59/12
- So, 3/12 + 84/18 = 59/12
In mixed form: 411/12
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 6/12+84/18 3/24+84/18 3/12+84/36 9/12+84/18 3/36+84/18 3/12+84/54 15/12+84/18 3/60+84/18 3/12+84/90 21/12+84/18 3/84+84/18