Answers

Add 12/18 and 21/18

1^st number: 12/18, 2^nd number: 1 3/18

12/18 + 21/18 is 11/6.

Steps for adding fractions

1. Add the two fractions:
   12/18 + 21/18 = 12 + 21/18 = 33/18
2. 33/18 simplified gives 11/6
3. So, 12/18 + 21/18 = 11/6
   In mixed form: 15/6

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