Answers

Add 2/42 and 30/81

2/42 + 30/81 is 79/189.

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,
   2/42 = 2 × 27/42 × 27 = 54/1134
3. Likewise, for the 2nd fraction, since 81 × 14 = 1134,
   30/81 = 30 × 14/81 × 14 = 420/1134
4. Add the two like fractions:
   54/1134 + 420/1134 = 54 + 420/1134 = 474/1134
5. 474/1134 simplified gives 79/189
6. So, 2/42 + 30/81 = 79/189

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