Answers

Add 10/21 and 28/21

1^st number: 10/21, 2^nd number: 1 7/21

10/21 + 28/21 is 38/21.

Steps for adding fractions

1. Add the two fractions:
   10/21 + 28/21 = 10 + 28/21 = 38/21
2. So, 10/21 + 28/21 = 38/21
   In mixed form: 117/21

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