Add or Subtract as Indicated $\frac { 1 } { 3 } - \frac { 1 } { 8 }$

Multiple Choice

Add or subtract as indicated.
- $\frac { 1 } { 3 } - \frac { 1 } { 8 }$

A) $\frac { 5 } { 24 }$
B) $- \frac { 1 } { 5 }$
C) $\frac { 1 } { 24 }$
D) $- \frac { 5 } { 24 }$