Answers

Add 80/12 and 84/70

1^st number: 6 8/12, 2^nd number: 1 14/70

80/12 + 84/70 is 118/15.

Steps for adding fractions

1. Find the least common denominator or LCM of the two denominators:
   LCM of 12 and 70 is 420
   
   Next, find the equivalent fraction of both fractional numbers with denominator 420
2. For the 1st fraction, since 12 × 35 = 420,
   80/12 = 80 × 35/12 × 35 = 2800/420
3. Likewise, for the 2nd fraction, since 70 × 6 = 420,
   84/70 = 84 × 6/70 × 6 = 504/420
4. Add the two like fractions:
   2800/420 + 504/420 = 2800 + 504/420 = 3304/420
5. 3304/420 simplified gives 118/15
6. So, 80/12 + 84/70 = 118/15
   In mixed form: 713/15

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