Answers

Add 12/15 and 6/81

12/15 + 6/81 is 118/135.

Steps for adding fractions

1. Find the least common denominator or LCM of the two denominators:
   LCM of 15 and 81 is 405
   
   Next, find the equivalent fraction of both fractional numbers with denominator 405
2. For the 1st fraction, since 15 × 27 = 405,
   12/15 = 12 × 27/15 × 27 = 324/405
3. Likewise, for the 2nd fraction, since 81 × 5 = 405,
   6/81 = 6 × 5/81 × 5 = 30/405
4. Add the two like fractions:
   324/405 + 30/405 = 324 + 30/405 = 354/405
5. 354/405 simplified gives 118/135
6. So, 12/15 + 6/81 = 118/135

MathStep (Works offline)

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

Related: ²⁴/₁₅+⁶/₈₁ ¹²/₁₅+¹²/₈₁ ¹²/₃₀+⁶/₈₁ ³⁶/₁₅+⁶/₈₁ ¹²/₁₅+¹⁸/₈₁ ¹²/₄₅+⁶/₈₁ ⁶⁰/₁₅+⁶/₈₁ ¹²/₁₅+³⁰/₈₁ ¹²/₇₅+⁶/₈₁ ⁸⁴/₁₅+⁶/₈₁ ¹²/₁₅+⁴²/₈₁

Add Fractions Calculator