Add 27/12 and 36/18
1st number: 2 3/12, 2nd number: 2 0/18
27/12 + 36/18 is 17/4.
Steps for adding fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 12 and 18 is 36
Next, find the equivalent fraction of both fractional numbers with denominator 36 - For the 1st fraction, since 12 × 3 = 36,
27/12 = 27 × 3/12 × 3 = 81/36 - Likewise, for the 2nd fraction, since 18 × 2 = 36,
36/18 = 36 × 2/18 × 2 = 72/36 - Add the two like fractions:
81/36 + 72/36 = 81 + 72/36 = 153/36 - 153/36 simplified gives 17/4
- So, 27/12 + 36/18 = 17/4
In mixed form: 41/4
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 54/12+36/18 27/12+72/18 27/24+36/18 81/12+36/18 27/36+36/18 27/12+36/54 27/60+36/18 27/12+36/90 27/84+36/18