Question

Simplify numbers with units 1.
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Answer 1

1. 1 min : 2 min

2. 1 min : 4 min

3. 1 : 5

4. 1 : 2

5. 1 hr : 4 hrs

6. 7 p : 10 p

7. 5 : 2 : 3

8. 1 : 3

9. 3 : 5

Explanation:

break it down to the lowest, which means to keep dividing it till it can't anymore.

hope that helps