0, 1, 2, 3, 4, 5, 6, 7, 8, 9, 10, 11, and 12
Lets get an example, for this example lets use 24/30 x 30/60
Without dividing out GCFs you would get 24x12 over 30 x 60 which is 288/1800
With dividing out GCFs you get 2/1 x 5/1 Which is 7 :)
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For # 9, the answer is 4 pants and 11 shirts, see in the comments for my explanation