Tatsouka 2009

What is the value of $4$ $\dfrac{2}{4}$ $-$ $\dfrac{2}{6}$?
A. $4\dfrac{1}{6}$
B. $\dfrac{2}{5}$
C. $\dfrac{6}{5}$
D. $1$
E. $\dfrac{11}{6}$