Answers

Add 21/24 and 18/24

21/24 + 18/24 is 13/8.

Steps for adding fractions

1. Add the two fractions:
   21/24 + 18/24 = 21 + 18/24 = 39/24
2. 39/24 simplified gives 13/8
3. So, 21/24 + 18/24 = 13/8
   In mixed form: 15/8

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