Answers

Add 8/45 and 70/81

8/45 + 70/81 is 422/405.

Steps for adding fractions

1. Find the least common denominator or LCM of the two denominators:
   LCM of 45 and 81 is 405
   
   Next, find the equivalent fraction of both fractional numbers with denominator 405
2. For the 1st fraction, since 45 × 9 = 405,
   8/45 = 8 × 9/45 × 9 = 72/405
3. Likewise, for the 2nd fraction, since 81 × 5 = 405,
   70/81 = 70 × 5/81 × 5 = 350/405
4. Add the two like fractions:
   72/405 + 350/405 = 72 + 350/405 = 422/405
5. So, 8/45 + 70/81 = 422/405
   In mixed form: 117/405

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