Answers

Add 81/42 and 2/18

1^st number: 1 39/42, 2^nd number: 2/18

81/42 + 2/18 is 257/126.

Steps for adding fractions

1. Find the least common denominator or LCM of the two denominators:
   LCM of 42 and 18 is 126
   
   Next, find the equivalent fraction of both fractional numbers with denominator 126
2. For the 1st fraction, since 42 × 3 = 126,
   81/42 = 81 × 3/42 × 3 = 243/126
3. Likewise, for the 2nd fraction, since 18 × 7 = 126,
   2/18 = 2 × 7/18 × 7 = 14/126
4. Add the two like fractions:
   243/126 + 14/126 = 243 + 14/126 = 257/126
5. So, 81/42 + 2/18 = 257/126
   In mixed form: 25/126

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