Question

Which of the following is not a proportion?

1/4 = 3/12
2/4 = 3/6
4/10 = 12/20
8/6 = 20/15

Answer 1

I believe it’ll be 4/10 = 12/20

Answer 2

4/10=12/20

Because if you divide 12/20 by two you get 6/10 Nd it’s not equal to 4/10