A car travels 1 6 of the distance between two cities in 3 5 of an hour. At this rate, what fraction of the distance between the two cities can the car travel in 1 hour?
Call the distance between the cities, d....so we have that
(1 / 6)d / (3 / 5) = x / 1 cross multiply
(3 / 5) x = ( 1 /6)d multiply both sides by 5 / 3
x = (5 / 3) * ( 1 / 6)d = (5 / 18) d
+47 
