Answers

Add 6/81 and 42/18

1^st number: 6/81, 2^nd number: 2 6/18

6/81 + 42/18 is 65/27.

Steps for adding fractions

1. Find the least common denominator or LCM of the two denominators:
   LCM of 81 and 18 is 162
   
   Next, find the equivalent fraction of both fractional numbers with denominator 162
2. For the 1st fraction, since 81 × 2 = 162,
   6/81 = 6 × 2/81 × 2 = 12/162
3. Likewise, for the 2nd fraction, since 18 × 9 = 162,
   42/18 = 42 × 9/18 × 9 = 378/162
4. Add the two like fractions:
   12/162 + 378/162 = 12 + 378/162 = 390/162
5. 390/162 simplified gives 65/27
6. So, 6/81 + 42/18 = 65/27
   In mixed form: 211/27

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