Answers

Add 80/12 and 49/84

1^st number: 6 8/12, 2^nd number: 49/84

80/12 + 49/84 is 29/4.

Steps for adding fractions

1. Find the least common denominator or LCM of the two denominators:
   LCM of 12 and 84 is 84
   
   Next, find the equivalent fraction of both fractional numbers with denominator 84
2. For the 1st fraction, since 12 × 7 = 84,
   80/12 = 80 × 7/12 × 7 = 560/84
3. Likewise, for the 2nd fraction, since 84 × 1 = 84,
   49/84 = 49 × 1/84 × 1 = 49/84
4. Add the two like fractions:
   560/84 + 49/84 = 560 + 49/84 = 609/84
5. 609/84 simplified gives 29/4
6. So, 80/12 + 49/84 = 29/4
   In mixed form: 71/4

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