Question

Which ratios form a proportion? Use equivalent ratios to test each pair.
A. 4/9, 2/3
B. 6/15, 9/12
C. 12/16, 15/20
D. 18/20, 24/30

Answer 1

Divide the numerator by the denominator to check each one.

I'll do the first choice.
4/9 = 0.44
2/3 = 0.66
NOT equivalent.

Can you check the rest?

Answer 2

yes

Answer 3

12/16,15/20