Answers

Add 81/9 and 90/9

1^st number: 9 0/9, 2^nd number: 10 0/9

81/9 + 90/9 is 19/1.

Steps for adding fractions

1. Add the two fractions:
   81/9 + 90/9 = 81 + 90/9 = 171/9
2. 171/9 simplified gives 19/1
3. So, 81/9 + 90/9 = 19/1

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