Answers

Add 28/90 and 72/90

28/90 + 72/90 is 10/9.

Steps for adding fractions

1. Add the two fractions:
   28/90 + 72/90 = 28 + 72/90 = 100/90
2. 100/90 simplified gives 10/9
3. So, 28/90 + 72/90 = 10/9
   In mixed form: 11/9

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