Answers

Add 72/14 and 84/36

1^st number: 5 2/14, 2^nd number: 2 12/36

72/14 + 84/36 is 157/21.

Steps for adding fractions

1. Find the least common denominator or LCM of the two denominators:
   LCM of 14 and 36 is 252
   
   Next, find the equivalent fraction of both fractional numbers with denominator 252
2. For the 1st fraction, since 14 × 18 = 252,
   72/14 = 72 × 18/14 × 18 = 1296/252
3. Likewise, for the 2nd fraction, since 36 × 7 = 252,
   84/36 = 84 × 7/36 × 7 = 588/252
4. Add the two like fractions:
   1296/252 + 588/252 = 1296 + 588/252 = 1884/252
5. 1884/252 simplified gives 157/21
6. So, 72/14 + 84/36 = 157/21
   In mixed form: 710/21

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