Latex Coder 2

Posted byjaehwa
What is $\displaystyle {7}\frac{2}{5} - {4}\frac{1}{5}$?
A. $ {3}\dfrac{1}{5}$
B. $ {4}\dfrac{1}{5}$
C. $ \dfrac{1}{5}$
D. ${3}\dfrac{2}{5}$
E. $ {4}\dfrac{2}{5}$