Answers

Add 56/81 and 12/45

56/81 + 12/45 is 388/405.

Steps for adding fractions

1. Find the least common denominator or LCM of the two denominators:
   LCM of 81 and 45 is 405
   
   Next, find the equivalent fraction of both fractional numbers with denominator 405
2. For the 1st fraction, since 81 × 5 = 405,
   56/81 = 56 × 5/81 × 5 = 280/405
3. Likewise, for the 2nd fraction, since 45 × 9 = 405,
   12/45 = 12 × 9/45 × 9 = 108/405
4. Add the two like fractions:
   280/405 + 108/405 = 280 + 108/405 = 388/405
5. So, 56/81 + 12/45 = 388/405

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