Answers

Add 30/5 and 84/81

1^st number: 6 0/5, 2^nd number: 1 3/81

30/5 + 84/81 is 190/27.

Steps for adding fractions

1. Find the least common denominator or LCM of the two denominators:
   LCM of 5 and 81 is 405
   
   Next, find the equivalent fraction of both fractional numbers with denominator 405
2. For the 1st fraction, since 5 × 81 = 405,
   30/5 = 30 × 81/5 × 81 = 2430/405
3. Likewise, for the 2nd fraction, since 81 × 5 = 405,
   84/81 = 84 × 5/81 × 5 = 420/405
4. Add the two like fractions:
   2430/405 + 420/405 = 2430 + 420/405 = 2850/405
5. 2850/405 simplified gives 190/27
6. So, 30/5 + 84/81 = 190/27
   In mixed form: 71/27

MathStep (Works offline)

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

Related: ⁶⁰/₅+⁸⁴/₈₁ ³⁰/₁₀+⁸⁴/₈₁ ⁹⁰/₅+⁸⁴/₈₁ ³⁰/₁₅+⁸⁴/₈₁ ³⁰/₂₅+⁸⁴/₈₁ ³⁰/₃₅+⁸⁴/₈₁

Add Fractions Calculator