Помагите пж!!!!!! Срочно

Question

Помагите пж!!!!!! Срочно

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Answer 1

4/10 = 2/5
8/16 = 1/2
5/15 = 1/3
14/42 = 1/3
150/600 = 1/4
45/400 = 9/80
300/75 = 4