Answers

Add 21/28 and 18/28

21/28 + 18/28 is 39/28.

Steps for adding fractions

1. Add the two fractions:
   21/28 + 18/28 = 21 + 18/28 = 39/28
2. So, 21/28 + 18/28 = 39/28
   In mixed form: 111/28

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