Answers

Add 70/84 and 15/9

1^st number: 70/84, 2^nd number: 1 6/9

70/84 + 15/9 is 5/2.

Steps for adding fractions

1. Find the least common denominator or LCM of the two denominators:
   LCM of 84 and 9 is 252
   
   Next, find the equivalent fraction of both fractional numbers with denominator 252
2. For the 1st fraction, since 84 × 3 = 252,
   70/84 = 70 × 3/84 × 3 = 210/252
3. Likewise, for the 2nd fraction, since 9 × 28 = 252,
   15/9 = 15 × 28/9 × 28 = 420/252
4. Add the two like fractions:
   210/252 + 420/252 = 210 + 420/252 = 630/252
5. 630/252 simplified gives 5/2
6. So, 70/84 + 15/9 = 5/2
   In mixed form: 21/2

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