Add 15/12 and 20/27
1st number: 1 3/12, 2nd number: 20/27
15/12 + 20/27 is 215/108.
Steps for adding fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 12 and 27 is 108
Next, find the equivalent fraction of both fractional numbers with denominator 108 - For the 1st fraction, since 12 × 9 = 108,
15/12 = 15 × 9/12 × 9 = 135/108 - Likewise, for the 2nd fraction, since 27 × 4 = 108,
20/27 = 20 × 4/27 × 4 = 80/108 - Add the two like fractions:
135/108 + 80/108 = 135 + 80/108 = 215/108 - So, 15/12 + 20/27 = 215/108
In mixed form: 1107/108
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 30/12+20/27 15/12+40/27 15/24+20/27 15/12+20/54 45/12+20/27 15/12+60/27 15/36+20/27 15/12+20/81 75/12+20/27 15/60+20/27 15/84+20/27