Answers

Add 81/21 and 63/21

1^st number: 3 18/21, 2^nd number: 3 0/21

81/21 + 63/21 is 48/7.

Steps for adding fractions

1. Add the two fractions:
   81/21 + 63/21 = 81 + 63/21 = 144/21
2. 144/21 simplified gives 48/7
3. So, 81/21 + 63/21 = 48/7
   In mixed form: 66/7

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