Answers

Add 81/42 and 60/84

1^st number: 1 39/42, 2^nd number: 60/84

81/42 + 60/84 is 37/14.

Steps for adding fractions

1. Find the least common denominator or LCM of the two denominators:
   LCM of 42 and 84 is 84
   
   Next, find the equivalent fraction of both fractional numbers with denominator 84
2. For the 1st fraction, since 42 × 2 = 84,
   81/42 = 81 × 2/42 × 2 = 162/84
3. Likewise, for the 2nd fraction, since 84 × 1 = 84,
   60/84 = 60 × 1/84 × 1 = 60/84
4. Add the two like fractions:
   162/84 + 60/84 = 162 + 60/84 = 222/84
5. 222/84 simplified gives 37/14
6. So, 81/42 + 60/84 = 37/14
   In mixed form: 29/14

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