Answers

Add 20/90 and 36/90

20/90 + 36/90 is 28/45.

Steps for adding fractions

1. Add the two fractions:
   20/90 + 36/90 = 20 + 36/90 = 56/90
2. 56/90 simplified gives 28/45
3. So, 20/90 + 36/90 = 28/45

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