Answers

Add 18/81 and 6/5

1^st number: 18/81, 2^nd number: 1 1/5

18/81 + 6/5 is 64/45.

Steps for adding fractions

1. Find the least common denominator or LCM of the two denominators:
   LCM of 81 and 5 is 405
   
   Next, find the equivalent fraction of both fractional numbers with denominator 405
2. For the 1st fraction, since 81 × 5 = 405,
   18/81 = 18 × 5/81 × 5 = 90/405
3. Likewise, for the 2nd fraction, since 5 × 81 = 405,
   6/5 = 6 × 81/5 × 81 = 486/405
4. Add the two like fractions:
   90/405 + 486/405 = 90 + 486/405 = 576/405
5. 576/405 simplified gives 64/45
6. So, 18/81 + 6/5 = 64/45
   In mixed form: 119/45

MathStep (Works offline)

Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad

Related: ³⁶/₈₁+⁶/₅ ¹⁸/₈₁+¹²/₅ ¹⁸/₈₁+⁶/₁₀ ⁵⁴/₈₁+⁶/₅ ¹⁸/₈₁+¹⁸/₅ ¹⁸/₈₁+⁶/₁₅ ⁹⁰/₈₁+⁶/₅ ¹⁸/₈₁+³⁰/₅ ¹⁸/₈₁+⁶/₂₅ ¹⁸/₈₁+⁴²/₅ ¹⁸/₈₁+⁶/₃₅

Add Fractions Calculator