Latex Coder 2

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