Answers

Add 16/21 and 45/27

1^st number: 16/21, 2^nd number: 1 18/27

16/21 + 45/27 is 17/7.

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,
   16/21 = 16 × 9/21 × 9 = 144/189
3. Likewise, for the 2nd fraction, since 27 × 7 = 189,
   45/27 = 45 × 7/27 × 7 = 315/189
4. Add the two like fractions:
   144/189 + 315/189 = 144 + 315/189 = 459/189
5. 459/189 simplified gives 17/7
6. So, 16/21 + 45/27 = 17/7
   In mixed form: 23/7

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