Answers

Add 20/90 and 70/90

20/90 + 70/90 is 1/1.

Steps for adding fractions

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

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