Answers

Add 84/70 and 12/36

1^st number: 1 14/70, 2^nd number: 12/36

84/70 + 12/36 is 23/15.

Steps for adding fractions

1. Find the least common denominator or LCM of the two denominators:
   LCM of 70 and 36 is 1260
   
   Next, find the equivalent fraction of both fractional numbers with denominator 1260
2. For the 1st fraction, since 70 × 18 = 1260,
   84/70 = 84 × 18/70 × 18 = 1512/1260
3. Likewise, for the 2nd fraction, since 36 × 35 = 1260,
   12/36 = 12 × 35/36 × 35 = 420/1260
4. Add the two like fractions:
   1512/1260 + 420/1260 = 1512 + 420/1260 = 1932/1260
5. 1932/1260 simplified gives 23/15
6. So, 84/70 + 12/36 = 23/15
   In mixed form: 18/15

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