Add 12/18 and 3/4
12/18 + 3/4 is 17/12.
Steps for adding fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 18 and 4 is 36
Next, find the equivalent fraction of both fractional numbers with denominator 36 - For the 1st fraction, since 18 × 2 = 36,
12/18 = 12 × 2/18 × 2 = 24/36 - Likewise, for the 2nd fraction, since 4 × 9 = 36,
3/4 = 3 × 9/4 × 9 = 27/36 - Add the two like fractions:
24/36 + 27/36 = 24 + 27/36 = 51/36 - 51/36 simplified gives 17/12
- So, 12/18 + 3/4 = 17/12
In mixed form: 15/12
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 24/18+3/4 12/18+6/4 12/36+3/4 12/18+3/8 36/18+3/4 12/18+9/4 12/54+3/4 12/18+3/12 60/18+3/4 12/18+15/4 12/90+3/4 12/18+3/20 84/18+3/4 12/18+21/4 12/18+3/28