Answers

Add 84/36 and 28/21

1^st number: 2 12/36, 2^nd number: 1 7/21

84/36 + 28/21 is 11/3.

Steps for adding fractions

1. Find the least common denominator or LCM of the two denominators:
   LCM of 36 and 21 is 252
   
   Next, find the equivalent fraction of both fractional numbers with denominator 252
2. For the 1st fraction, since 36 × 7 = 252,
   84/36 = 84 × 7/36 × 7 = 588/252
3. Likewise, for the 2nd fraction, since 21 × 12 = 252,
   28/21 = 28 × 12/21 × 12 = 336/252
4. Add the two like fractions:
   588/252 + 336/252 = 588 + 336/252 = 924/252
5. 924/252 simplified gives 11/3
6. So, 84/36 + 28/21 = 11/3
   In mixed form: 32/3

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