If the Numerator of a Certain Fraction Is Increased by 4

Multiple Choice

If the numerator of a certain fraction is increased by 4 and the denominator is decreased by 2, the resulting fraction is $\frac { 8 } { 5 }$ . However, if the numerator of the original fraction is doubled and the denominator is increased by 7, the resulting fraction is $\frac { 4 } { 7 }$ . Find the original fraction.

A) $\frac { 4 } { 7 }$
B) $\frac { 3 } { 7 }$
C) $\frac { 6 } { 7 }$
D) $\frac { 3 } { 5 }$
E) $\frac { 4 } { 5 }$