Add 12/18 and 20/4
1st number: 12/18, 2nd number: 5 0/4
12/18 + 20/4 is 17/3.
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,
20/4 = 20 × 9/4 × 9 = 180/36 - Add the two like fractions:
24/36 + 180/36 = 24 + 180/36 = 204/36 - 204/36 simplified gives 17/3
- So, 12/18 + 20/4 = 17/3
In mixed form: 52/3
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 24/18+20/4 12/18+40/4 12/36+20/4 12/18+20/8 36/18+20/4 12/18+60/4 12/54+20/4 12/18+20/12 60/18+20/4 12/90+20/4 84/18+20/4 12/18+20/28