What is the HCF of 2/3, 4/9 and 6/18  Select the correct option:
A) 7 / 45	B) 2 / 45	C) 1 / 9	D) 8 / 45	E) 9 / 45

Rationale: explanation : hcf of fractions = hcf of numerators / lcm of denominators = ( hcf of 2 , 4 , 6 ) / ( lcm of 3 , 9 , 18 ) = 2 / 18 = 1 / 9 answer : option c
Answer: C