If Jonas has already run 4 miles in a 20-mile race, what fraction of the race has he already run?
(A)\(\frac { 1 } { 80 } \) (B)\(\frac { 1 } { 24 } \) (C)\(\frac { 1 } { 8 } \) (D)\(\frac { 1 } { 6 } \) (E)\(\frac { 1 } { 5 } \)
E