Answers

Add 20/90 and 25/90

20/90 + 25/90 is 1/2.

Steps for adding fractions

1. Add the two fractions:
   20/90 + 25/90 = 20 + 25/90 = 45/90
2. 45/90 simplified gives 1/2
3. So, 20/90 + 25/90 = 1/2

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