Answers

Add 84/63 and 7/27

1^st number: 1 21/63, 2^nd number: 7/27

84/63 + 7/27 is 43/27.

Steps for adding fractions

1. Find the least common denominator or LCM of the two denominators:
   LCM of 63 and 27 is 189
   
   Next, find the equivalent fraction of both fractional numbers with denominator 189
2. For the 1st fraction, since 63 × 3 = 189,
   84/63 = 84 × 3/63 × 3 = 252/189
3. Likewise, for the 2nd fraction, since 27 × 7 = 189,
   7/27 = 7 × 7/27 × 7 = 49/189
4. Add the two like fractions:
   252/189 + 49/189 = 252 + 49/189 = 301/189
5. 301/189 simplified gives 43/27
6. So, 84/63 + 7/27 = 43/27
   In mixed form: 116/27

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