What is $\displaystyle {6}\frac{4}{5} - {5}\frac{1}{5}$?
A. $ {1}\dfrac{3}{5}$
B. $ {2}\dfrac{3}{5}$
C. $ \dfrac{3}{5}$
D. ${1}\dfrac{1}{5}$
E. $ {2}\dfrac{1}{5}$
A. $ {1}\dfrac{3}{5}$
B. $ {2}\dfrac{3}{5}$
C. $ \dfrac{3}{5}$
D. ${1}\dfrac{1}{5}$
E. $ {2}\dfrac{1}{5}$
