Answers

Add 2/3 and 35/81

2/3 + 35/81 is 89/81.

Steps for adding fractions

1. Find the least common denominator or LCM of the two denominators:
   LCM of 3 and 81 is 81
   
   Next, find the equivalent fraction of both fractional numbers with denominator 81
2. For the 1st fraction, since 3 × 27 = 81,
   2/3 = 2 × 27/3 × 27 = 54/81
3. Likewise, for the 2nd fraction, since 81 × 1 = 81,
   35/81 = 35 × 1/81 × 1 = 35/81
4. Add the two like fractions:
   54/81 + 35/81 = 54 + 35/81 = 89/81
5. So, 2/3 + 35/81 = 89/81
   In mixed form: 18/81

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