A Mechanic Needs the Following Lengths Of $\frac { 3 } { 8 }$

Multiple Choice

A mechanic needs the following lengths of $\frac { 3 } { 8 }$ in. copper tubing: $15 \frac { 1 } { 8 }$ in., $7 \frac { 3 } { 4 }$ in., $11 \frac { 1 } { 2 }$ in., $5 \frac { 1 } { 32 }$ in. and $6 \frac { 1 } { 16 }$  in. What is the total length of tubing needed?

A) $45 \frac { 7 } { 15 }$ in.
B) $46 \frac { 3 } { 32 }$ in.
C) $47 \frac { 17 } { 32 }$ in.
D) $45 \frac { 15 } { 32 }$ in.
E) $47 \frac { 13 } { 32 }$ in.