Answers

Add 84/21 and 21/36

1^st number: 4 0/21, 2^nd number: 21/36

84/21 + 21/36 is 55/12.

Steps for adding fractions

1. Find the least common denominator or LCM of the two denominators:
   LCM of 21 and 36 is 252
   
   Next, find the equivalent fraction of both fractional numbers with denominator 252
2. For the 1st fraction, since 21 × 12 = 252,
   84/21 = 84 × 12/21 × 12 = 1008/252
3. Likewise, for the 2nd fraction, since 36 × 7 = 252,
   21/36 = 21 × 7/36 × 7 = 147/252
4. Add the two like fractions:
   1008/252 + 147/252 = 1008 + 147/252 = 1155/252
5. 1155/252 simplified gives 55/12
6. So, 84/21 + 21/36 = 55/12
   In mixed form: 47/12

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