Answers

Add 28/21 and 12/21

1^st number: 1 7/21, 2^nd number: 12/21

28/21 + 12/21 is 40/21.

Steps for adding fractions

1. Add the two fractions:
   28/21 + 12/21 = 28 + 12/21 = 40/21
2. So, 28/21 + 12/21 = 40/21
   In mixed form: 119/21

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