Reflection I’m almost positive...................
The greatest common factor of 10 and 40 is 10.
Well, the ratio of cars to trucks is 5:1, so for every 1 truck, there are 5 cars, the sum would be 6. So that's the denominator, and then the numerator would be 1, since there's only 1 truck out of every 6 vehicles.
Answer: D. 1/6
I didn’t understand but when I understand I will help you