Add 42/3 and 27/18
1st number: 14 0/3, 2nd number: 1 9/18
42/3 + 27/18 is 31/2.
Steps for adding fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 3 and 18 is 18
Next, find the equivalent fraction of both fractional numbers with denominator 18 - For the 1st fraction, since 3 × 6 = 18,
42/3 = 42 × 6/3 × 6 = 252/18 - Likewise, for the 2nd fraction, since 18 × 1 = 18,
27/18 = 27 × 1/18 × 1 = 27/18 - Add the two like fractions:
252/18 + 27/18 = 252 + 27/18 = 279/18 - 279/18 simplified gives 31/2
- So, 42/3 + 27/18 = 31/2
In mixed form: 151/2
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 84/3+27/18 42/3+54/18 42/6+27/18 42/3+27/36 42/3+81/18 42/9+27/18 42/3+27/54 42/15+27/18 42/3+27/90 42/21+27/18