Add 12/18 and 36/20
1st number: 12/18, 2nd number: 1 16/20
12/18 + 36/20 is 37/15.
Steps for adding fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 18 and 20 is 180
Next, find the equivalent fraction of both fractional numbers with denominator 180 - For the 1st fraction, since 18 × 10 = 180,
12/18 = 12 × 10/18 × 10 = 120/180 - Likewise, for the 2nd fraction, since 20 × 9 = 180,
36/20 = 36 × 9/20 × 9 = 324/180 - Add the two like fractions:
120/180 + 324/180 = 120 + 324/180 = 444/180 - 444/180 simplified gives 37/15
- So, 12/18 + 36/20 = 37/15
In mixed form: 27/15
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 24/18+36/20 12/18+72/20 12/36+36/20 12/18+36/40 36/18+36/20 12/54+36/20 12/18+36/60 60/18+36/20 12/90+36/20 84/18+36/20