Answers

Add 5/25 and 10/81

5/25 + 10/81 is 131/405.

Steps for adding fractions

1. Find the least common denominator or LCM of the two denominators:
   LCM of 25 and 81 is 2025
   
   Next, find the equivalent fraction of both fractional numbers with denominator 2025
2. For the 1st fraction, since 25 × 81 = 2025,
   5/25 = 5 × 81/25 × 81 = 405/2025
3. Likewise, for the 2nd fraction, since 81 × 25 = 2025,
   10/81 = 10 × 25/81 × 25 = 250/2025
4. Add the two like fractions:
   405/2025 + 250/2025 = 405 + 250/2025 = 655/2025
5. 655/2025 simplified gives 131/405
6. So, 5/25 + 10/81 = 131/405

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