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Sagot :

Answer:

4/7 and 10/17.5 is a proportion

2/3 and 9/12 is not a proportion

3/8 and 6/141 is not a proportion

18/8 and 9/4 is a proportion

7/5 and 27/20 is a proportion

Explanation:

2.5(4/7)= 10/17.5

9/4(2)= 18?8

7/5(4)= 27/20

the rest dont have anything common factors