Answers

Add 81/42 and 2/70

1^st number: 1 39/42, 2^nd number: 2/70

81/42 + 2/70 is 137/70.

Steps for adding fractions

1. Find the least common denominator or LCM of the two denominators:
   LCM of 42 and 70 is 210
   
   Next, find the equivalent fraction of both fractional numbers with denominator 210
2. For the 1st fraction, since 42 × 5 = 210,
   81/42 = 81 × 5/42 × 5 = 405/210
3. Likewise, for the 2nd fraction, since 70 × 3 = 210,
   2/70 = 2 × 3/70 × 3 = 6/210
4. Add the two like fractions:
   405/210 + 6/210 = 405 + 6/210 = 411/210
5. 411/210 simplified gives 137/70
6. So, 81/42 + 2/70 = 137/70
   In mixed form: 167/70

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