First Estimate the Answer $16 \frac{1}{2}$ -Foot Pipe and Cuts Off Two Pieces

Short Answer

First estimate the answer. Then solve each application problem.
-Joel takes a $16 \frac{1}{2}$ -foot pipe and cuts off two pieces.
If one piece is $2 \frac{3}{4}$ feet long and the other is $3 \frac{1}{8}$ feet long, how long is the remaining piece?