Answers

Add 21/75 and 2/81

21/75 + 2/81 is 617/2025.

Steps for adding fractions

1. Find the least common denominator or LCM of the two denominators:
   LCM of 75 and 81 is 2025
   
   Next, find the equivalent fraction of both fractional numbers with denominator 2025
2. For the 1st fraction, since 75 × 27 = 2025,
   21/75 = 21 × 27/75 × 27 = 567/2025
3. Likewise, for the 2nd fraction, since 81 × 25 = 2025,
   2/81 = 2 × 25/81 × 25 = 50/2025
4. Add the two like fractions:
   567/2025 + 50/2025 = 567 + 50/2025 = 617/2025
5. So, 21/75 + 2/81 = 617/2025

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