Which one of the following mixed fractions is the largest?
$$-6\frac{4}{5} , -6\frac{2}{7} , -6\frac{3}{8} , -6\frac{3}{10}$$

A

$$-6\frac{4}{5}$$

B

$$-6\frac{2}{7}$$

C

$$-6\frac{3}{8}$$

D

$$-6\frac{3}{10}$$