Add 72/36 and 27/18
1st number: 2 0/36, 2nd number: 1 9/18
72/36 + 27/18 is 7/2.
Steps for adding fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 36 and 18 is 36
Next, find the equivalent fraction of both fractional numbers with denominator 36 - For the 1st fraction, since 36 × 1 = 36,
72/36 = 72 × 1/36 × 1 = 72/36 - Likewise, for the 2nd fraction, since 18 × 2 = 36,
27/18 = 27 × 2/18 × 2 = 54/36 - Add the two like fractions:
72/36 + 54/36 = 72 + 54/36 = 126/36 - 126/36 simplified gives 7/2
- So, 72/36 + 27/18 = 7/2
In mixed form: 31/2
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 72/36+54/18 72/36+27/36 72/36+81/18 72/36+27/54 72/36+27/90