If a/b = 2 and b/c = 4/3, what is the value of c/a? Express your answer as a common fraction.
a/b = 2, b/c = 4/3
a/b * b/c = 8/3
a/c = 8/3
=> c/a = 3/8
b/a = 1/2
c/b = 3/4 b/a * c/b = c/a = 1/2 * 3/4 = 3/8