Answers

Add 80/42 and 70/84

1^st number: 1 38/42, 2^nd number: 70/84

80/42 + 70/84 is 115/42.

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,
   80/42 = 80 × 2/42 × 2 = 160/84
3. Likewise, for the 2nd fraction, since 84 × 1 = 84,
   70/84 = 70 × 1/84 × 1 = 70/84
4. Add the two like fractions:
   160/84 + 70/84 = 160 + 70/84 = 230/84
5. 230/84 simplified gives 115/42
6. So, 80/42 + 70/84 = 115/42
   In mixed form: 231/42

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