Answers

Add 63/21 and 90/21

1^st number: 3 0/21, 2^nd number: 4 6/21

63/21 + 90/21 is 51/7.

Steps for adding fractions

1. Add the two fractions:
   63/21 + 90/21 = 63 + 90/21 = 153/21
2. 153/21 simplified gives 51/7
3. So, 63/21 + 90/21 = 51/7
   In mixed form: 72/7

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