Question

Step 1 Add the inches. Step 2 Add the feet. \[ \begin{array}{rr} 2 \mathrm{ft} & 9 \mathrm{in} \\ +1 \mathrm{ft} & 7 \mathrm{in} \\ \hline 16 \mathrm{in} \end{array} \] Step 3 If the inches total more than 12 , use a proportion to change the remainder into feet and inches. \[ \begin{array}{r} 2 \mathrm{ft} \quad 9 \mathrm{in} \\ +1 \mathrm{ft} \quad 7 \mathrm{in} \\ \hline 3 \mathrm{ft} \quad 16 \mathrm{in} \end{array} \] Step 4 Add to get the final answer. \[ \begin{aligned} \frac{1 \mathrm{ft}}{12 \mathrm{in}} & =\frac{n}{16 \mathrm{in}} \\ 12 n & =16 \\ n & =1 \mathrm{ft} 4 \mathrm{in} \end{aligned} \] Study these examples. Add. Change the remainders into feet and inches. (1) \[ \begin{array}{r} 2 \mathrm{H} \quad 7 \mathrm{in} \\ +4 \mathrm{H} \quad 8 \mathrm{in} \\ \hline 6415 \mathrm{in} \end{array} \] (2) \[ \begin{array}{r} 3 \mathrm{ft} \quad 6 \mathrm{in} \\ +4 \mathrm{ft} \quad 10 \mathrm{in} \\ \hline 7 \mathrm{ft} 16 \mathrm{in} \end{array} \] (3) \[ \begin{array}{r} 5 \mathrm{ft} \quad 10 \mathrm{in} \\ +5 \mathrm{ft} \quad 10 \mathrm{in} \\ \hline 10 \mathrm{ft} 20 \mathrm{in} \end{array} \] (4) \[ \begin{array}{r} 5 \mathrm{ft} 8 \mathrm{in} \\ +1 \mathrm{ft} 9 \mathrm{in} \\ \hline 6 \mathrm{ft} 12 \mathrm{im} \end{array} \] 6

          Step 1 Add the inches.

Step 2 Add the feet.
\[
\begin{array}{rr}
2 \mathrm{ft} & 9 \mathrm{in} \\
+1 \mathrm{ft} & 7 \mathrm{in} \\
\hline 16 \mathrm{in}
\end{array}
\]

Step 3 If the inches total more than 12 , use a proportion to change the remainder into feet and inches.
\[
\begin{array}{r}
2 \mathrm{ft} \quad 9 \mathrm{in} \\
+1 \mathrm{ft} \quad 7 \mathrm{in} \\
\hline 3 \mathrm{ft} \quad 16 \mathrm{in}
\end{array}
\]

Step 4 Add to get the final answer.
\[
\begin{aligned}
\frac{1 \mathrm{ft}}{12 \mathrm{in}} & =\frac{n}{16 \mathrm{in}} \\
12 n & =16 \\
n & =1 \mathrm{ft} 4 \mathrm{in}
\end{aligned}
\]

Study these examples.

Add. Change the remainders into feet and inches.
(1)
\[
\begin{array}{r}
2 \mathrm{H} \quad 7 \mathrm{in} \\
+4 \mathrm{H} \quad 8 \mathrm{in} \\
\hline 6415 \mathrm{in}
\end{array}
\]
(2)
\[
\begin{array}{r}
3 \mathrm{ft} \quad 6 \mathrm{in} \\
+4 \mathrm{ft} \quad 10 \mathrm{in} \\
\hline 7 \mathrm{ft} 16 \mathrm{in}
\end{array}
\]
(3)
\[
\begin{array}{r}
5 \mathrm{ft} \quad 10 \mathrm{in} \\
+5 \mathrm{ft} \quad 10 \mathrm{in} \\
\hline 10 \mathrm{ft} 20 \mathrm{in}
\end{array}
\]
(4)
\[
\begin{array}{r}
5 \mathrm{ft} 8 \mathrm{in} \\
+1 \mathrm{ft} 9 \mathrm{in} \\
\hline 6 \mathrm{ft} 12 \mathrm{im}
\end{array}
\]
6

Step 1 Add the inches.

Step 2 Add the feet.

2 ft 9 in

+1 ft 7 in
16 in

Step 3 If the inches total more than 12 , use a proportion to change the remainder into feet and inches.

2 ft 9 in

+1 ft 7 in
3 ft 16 in

Step 4 Add to get the final answer.

(1 ft)/(12 in) =(n)/(16 in)

12 n =16

n =1 ft 4 in

Study these examples.

Add. Change the remainders into feet and inches.
(1)

2 H 7 in

+4 H 8 in
6415 in

(2)

3 ft 6 in

+4 ft 10 in
7 ft 16 in

(3)

5 ft 10 in

+5 ft 10 in
10 ft 20 in

(4)

5 ft 8 in

+1 ft 9 in
6 ft 12 im

6

Added by Karen F.

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