Add 18/60 and 27/18
1st number: 18/60, 2nd number: 1 9/18
18/60 + 27/18 is 9/5.
Steps for adding fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 60 and 18 is 180
Next, find the equivalent fraction of both fractional numbers with denominator 180 - For the 1st fraction, since 60 × 3 = 180,
18/60 = 18 × 3/60 × 3 = 54/180 - Likewise, for the 2nd fraction, since 18 × 10 = 180,
27/18 = 27 × 10/18 × 10 = 270/180 - Add the two like fractions:
54/180 + 270/180 = 54 + 270/180 = 324/180 - 324/180 simplified gives 9/5
- So, 18/60 + 27/18 = 9/5
In mixed form: 14/5
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 36/60+27/18 18/60+54/18 18/60+27/36 54/60+27/18 18/60+81/18 18/60+27/54 90/60+27/18 18/60+27/90