Answers

Add 20/90 and 50/90

20/90 + 50/90 is 7/9.

Steps for adding fractions

1. Add the two fractions:
   20/90 + 50/90 = 20 + 50/90 = 70/90
2. 70/90 simplified gives 7/9
3. So, 20/90 + 50/90 = 7/9

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