The ratio of a to b is 3:5. The ratio of c to d is 1:6. What is the ratio of ac to bd?
 
											 
											Answer:
A.
Step-by-step explanation:
a/b = 3:5 = 3/5
c/d = 1:6 = 1/6
So if you want ac to bd you would get
3 * 1
-------
5 * 6
3 / 30 = 1/10