Aferry traveled 1/6 of the distance between two ports in 3/7 hour. at this rate, what fraction of the distance between the two ports can the ferry travel in one hour?

(1/6) / (3/7) = x / 11/6 distance to 3/7 hr = x distance to 1 hr
cross multiply
(3/7)(x) = (1/6)(1)
3/7x = 1/6
x = (1/6) / (3/7)
x = 1/6 * 7/3
x = 7/18 <=== 7/18 of the distance in 1 hr