Add 81/3 and 18/5
1st number: 27 0/3, 2nd number: 3 3/5
81/3 + 18/5 is 153/5.
Steps for adding fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 3 and 5 is 15
Next, find the equivalent fraction of both fractional numbers with denominator 15 - For the 1st fraction, since 3 × 5 = 15,
81/3 = 81 × 5/3 × 5 = 405/15 - Likewise, for the 2nd fraction, since 5 × 3 = 15,
18/5 = 18 × 3/5 × 3 = 54/15 - Add the two like fractions:
405/15 + 54/15 = 405 + 54/15 = 459/15 - 459/15 simplified gives 153/5
- So, 81/3 + 18/5 = 153/5
In mixed form: 303/5
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 81/3+36/5 81/6+18/5 81/3+18/10 81/3+54/5 81/9+18/5 81/3+18/15 81/3+90/5 81/15+18/5 81/3+18/25 81/21+18/5 81/3+18/35