Answers

Add 84/21 and 63/27

1^st number: 4 0/21, 2^nd number: 2 9/27

84/21 + 63/27 is 19/3.

Steps for adding fractions

1. Find the least common denominator or LCM of the two denominators:
   LCM of 21 and 27 is 189
   
   Next, find the equivalent fraction of both fractional numbers with denominator 189
2. For the 1st fraction, since 21 × 9 = 189,
   84/21 = 84 × 9/21 × 9 = 756/189
3. Likewise, for the 2nd fraction, since 27 × 7 = 189,
   63/27 = 63 × 7/27 × 7 = 441/189
4. Add the two like fractions:
   756/189 + 441/189 = 756 + 441/189 = 1197/189
5. 1197/189 simplified gives 19/3
6. So, 84/21 + 63/27 = 19/3
   In mixed form: 61/3

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