A certain fraction has the same ratio to 1/18, as 2/5 does to 7/9. What is this certain fraction?	Options:
A) 1/20	B) 1/25	C) 1/30	D) 1/35	E) 1/40
x / (1/18) = (2/5) / (7/9)   x = 2*9*1 / 18*5*7 = 1/35   The answer is 1/35.
<result>D</result>
A certain fraction has the same ratio to 1/18, as 2/5 does to 7/9. What is this certain fraction?