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
