Answers

Add 20/36 and 6/81

20/36 + 6/81 is 17/27.

Steps for adding fractions

1. Find the least common denominator or LCM of the two denominators:
   LCM of 36 and 81 is 324
   
   Next, find the equivalent fraction of both fractional numbers with denominator 324
2. For the 1st fraction, since 36 × 9 = 324,
   20/36 = 20 × 9/36 × 9 = 180/324
3. Likewise, for the 2nd fraction, since 81 × 4 = 324,
   6/81 = 6 × 4/81 × 4 = 24/324
4. Add the two like fractions:
   180/324 + 24/324 = 180 + 24/324 = 204/324
5. 204/324 simplified gives 17/27
6. So, 20/36 + 6/81 = 17/27

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