Answers

Add 81/42 and 42/7

1^st number: 1 39/42, 2^nd number: 6 0/7

81/42 + 42/7 is 111/14.

Steps for adding fractions

1. Find the least common denominator or LCM of the two denominators:
   LCM of 42 and 7 is 42
   
   Next, find the equivalent fraction of both fractional numbers with denominator 42
2. For the 1st fraction, since 42 × 1 = 42,
   81/42 = 81 × 1/42 × 1 = 81/42
3. Likewise, for the 2nd fraction, since 7 × 6 = 42,
   42/7 = 42 × 6/7 × 6 = 252/42
4. Add the two like fractions:
   81/42 + 252/42 = 81 + 252/42 = 333/42
5. 333/42 simplified gives 111/14
6. So, 81/42 + 42/7 = 111/14
   In mixed form: 713/14

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