Add 15/12 and 20/36
1st number: 1 3/12, 2nd number: 20/36
15/12 + 20/36 is 65/36.
Steps for adding fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 12 and 36 is 36
Next, find the equivalent fraction of both fractional numbers with denominator 36 - For the 1st fraction, since 12 × 3 = 36,
15/12 = 15 × 3/12 × 3 = 45/36 - Likewise, for the 2nd fraction, since 36 × 1 = 36,
20/36 = 20 × 1/36 × 1 = 20/36 - Add the two like fractions:
45/36 + 20/36 = 45 + 20/36 = 65/36 - So, 15/12 + 20/36 = 65/36
In mixed form: 129/36
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 30/12+20/36 15/12+40/36 15/24+20/36 15/12+20/72 45/12+20/36 15/12+60/36 15/36+20/36 75/12+20/36 15/60+20/36 15/84+20/36