Answers

Add 3/42 and 4/81

3/42 + 4/81 is 137/1134.

Steps for adding fractions

1. Find the least common denominator or LCM of the two denominators:
   LCM of 42 and 81 is 1134
   
   Next, find the equivalent fraction of both fractional numbers with denominator 1134
2. For the 1st fraction, since 42 × 27 = 1134,
   3/42 = 3 × 27/42 × 27 = 81/1134
3. Likewise, for the 2nd fraction, since 81 × 14 = 1134,
   4/81 = 4 × 14/81 × 14 = 56/1134
4. Add the two like fractions:
   81/1134 + 56/1134 = 81 + 56/1134 = 137/1134
5. So, 3/42 + 4/81 = 137/1134

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