Answers

Add 84/70 and 18/12

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

84/70 + 18/12 is 27/10.

Steps for adding fractions

1. Find the least common denominator or LCM of the two denominators:
   LCM of 70 and 12 is 420
   
   Next, find the equivalent fraction of both fractional numbers with denominator 420
2. For the 1st fraction, since 70 × 6 = 420,
   84/70 = 84 × 6/70 × 6 = 504/420
3. Likewise, for the 2nd fraction, since 12 × 35 = 420,
   18/12 = 18 × 35/12 × 35 = 630/420
4. Add the two like fractions:
   504/420 + 630/420 = 504 + 630/420 = 1134/420
5. 1134/420 simplified gives 27/10
6. So, 84/70 + 18/12 = 27/10
   In mixed form: 27/10

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