Add 72/18 and 27/36
1st number: 4 0/18, 2nd number: 27/36
72/18 + 27/36 is 19/4.
Steps for adding fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 18 and 36 is 36
Next, find the equivalent fraction of both fractional numbers with denominator 36 - For the 1st fraction, since 18 × 2 = 36,
72/18 = 72 × 2/18 × 2 = 144/36 - Likewise, for the 2nd fraction, since 36 × 1 = 36,
27/36 = 27 × 1/36 × 1 = 27/36 - Add the two like fractions:
144/36 + 27/36 = 144 + 27/36 = 171/36 - 171/36 simplified gives 19/4
- So, 72/18 + 27/36 = 19/4
In mixed form: 43/4
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 72/18+54/36 72/36+27/36 72/18+27/72 72/18+81/36 72/54+27/36 72/90+27/36