Answers

Add 18/81 and 40/25

1^st number: 18/81, 2^nd number: 1 15/25

18/81 + 40/25 is 82/45.

Steps for adding fractions

1. Find the least common denominator or LCM of the two denominators:
   LCM of 81 and 25 is 2025
   
   Next, find the equivalent fraction of both fractional numbers with denominator 2025
2. For the 1st fraction, since 81 × 25 = 2025,
   18/81 = 18 × 25/81 × 25 = 450/2025
3. Likewise, for the 2nd fraction, since 25 × 81 = 2025,
   40/25 = 40 × 81/25 × 81 = 3240/2025
4. Add the two like fractions:
   450/2025 + 3240/2025 = 450 + 3240/2025 = 3690/2025
5. 3690/2025 simplified gives 82/45
6. So, 18/81 + 40/25 = 82/45
   In mixed form: 137/45

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