Add 18/36 and 27/24
1st number: 18/36, 2nd number: 1 3/24
18/36 + 27/24 is 13/8.
Steps for adding fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 36 and 24 is 72
Next, find the equivalent fraction of both fractional numbers with denominator 72 - For the 1st fraction, since 36 × 2 = 72,
18/36 = 18 × 2/36 × 2 = 36/72 - Likewise, for the 2nd fraction, since 24 × 3 = 72,
27/24 = 27 × 3/24 × 3 = 81/72 - Add the two like fractions:
36/72 + 81/72 = 36 + 81/72 = 117/72 - 117/72 simplified gives 13/8
- So, 18/36 + 27/24 = 13/8
In mixed form: 15/8
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 18/36+54/24 18/72+27/24 18/36+27/48 54/36+27/24 18/36+81/24 18/36+27/72 90/36+27/24