Select the pairs of ratios that form a true proportion.
Choose ALL that apply.
Hint: simplify each ratio or use cross products
A. 3:6 and 5:10
B.20/5 and 10/3
C. 4/12 and 6/18
D. 24 to 36 and 8 to 9
E. 5:45 and 2:18
A. 3:6 and 5:10
B. 20/5 and 10/3