Add 27/18 and 18/8
1st number: 1 9/18, 2nd number: 2 2/8
27/18 + 18/8 is 15/4.
Steps for adding fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 18 and 8 is 72
Next, find the equivalent fraction of both fractional numbers with denominator 72 - For the 1st fraction, since 18 × 4 = 72,
27/18 = 27 × 4/18 × 4 = 108/72 - Likewise, for the 2nd fraction, since 8 × 9 = 72,
18/8 = 18 × 9/8 × 9 = 162/72 - Add the two like fractions:
108/72 + 162/72 = 108 + 162/72 = 270/72 - 270/72 simplified gives 15/4
- So, 27/18 + 18/8 = 15/4
In mixed form: 33/4
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 54/18+18/8 27/18+36/8 27/36+18/8 27/18+18/16 81/18+18/8 27/18+54/8 27/54+18/8 27/18+18/24 27/18+90/8 27/90+18/8 27/18+18/40 27/18+18/56