Add 12/3 and 20/18
1st number: 4 0/3, 2nd number: 1 2/18
12/3 + 20/18 is 46/9.
Steps for adding fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 3 and 18 is 18
Next, find the equivalent fraction of both fractional numbers with denominator 18 - For the 1st fraction, since 3 × 6 = 18,
12/3 = 12 × 6/3 × 6 = 72/18 - Likewise, for the 2nd fraction, since 18 × 1 = 18,
20/18 = 20 × 1/18 × 1 = 20/18 - Add the two like fractions:
72/18 + 20/18 = 72 + 20/18 = 92/18 - 92/18 simplified gives 46/9
- So, 12/3 + 20/18 = 46/9
In mixed form: 51/9
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 24/3+20/18 12/3+40/18 12/6+20/18 12/3+20/36 36/3+20/18 12/3+60/18 12/9+20/18 12/3+20/54 60/3+20/18 12/15+20/18 12/3+20/90 84/3+20/18 12/21+20/18