Answers

Add 45/27 and 63/21

1^st number: 1 18/27, 2^nd number: 3 0/21

45/27 + 63/21 is 14/3.

Steps for adding fractions

1. Find the least common denominator or LCM of the two denominators:
   LCM of 27 and 21 is 189
   
   Next, find the equivalent fraction of both fractional numbers with denominator 189
2. For the 1st fraction, since 27 × 7 = 189,
   45/27 = 45 × 7/27 × 7 = 315/189
3. Likewise, for the 2nd fraction, since 21 × 9 = 189,
   63/21 = 63 × 9/21 × 9 = 567/189
4. Add the two like fractions:
   315/189 + 567/189 = 315 + 567/189 = 882/189
5. 882/189 simplified gives 14/3
6. So, 45/27 + 63/21 = 14/3
   In mixed form: 42/3

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