Answers

Add 48/42 and 84/81

1^st number: 1 6/42, 2^nd number: 1 3/81

48/42 + 84/81 is 412/189.

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,
   48/42 = 48 × 27/42 × 27 = 1296/1134
3. Likewise, for the 2nd fraction, since 81 × 14 = 1134,
   84/81 = 84 × 14/81 × 14 = 1176/1134
4. Add the two like fractions:
   1296/1134 + 1176/1134 = 1296 + 1176/1134 = 2472/1134
5. 2472/1134 simplified gives 412/189
6. So, 48/42 + 84/81 = 412/189
   In mixed form: 234/189

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