Answers

Add 40/12 and 6/81

1^st number: 3 4/12, 2^nd number: 6/81

40/12 + 6/81 is 92/27.

Steps for adding fractions

1. Find the least common denominator or LCM of the two denominators:
   LCM of 12 and 81 is 324
   
   Next, find the equivalent fraction of both fractional numbers with denominator 324
2. For the 1st fraction, since 12 × 27 = 324,
   40/12 = 40 × 27/12 × 27 = 1080/324
3. Likewise, for the 2nd fraction, since 81 × 4 = 324,
   6/81 = 6 × 4/81 × 4 = 24/324
4. Add the two like fractions:
   1080/324 + 24/324 = 1080 + 24/324 = 1104/324
5. 1104/324 simplified gives 92/27
6. So, 40/12 + 6/81 = 92/27
   In mixed form: 311/27

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