Question

Which set of ratios form a proportion?

6/8 and 15/20
12/15 and 18/24
9/10 and 19/20
20/30 and 30/40

Answer 1

I think it’s A and D but I could be wrong

Answer 2

Explanation:6/8 and 15/20 because if you divde them by 2.5 each they are equivalete