Answer
$1\frac{1}{2}$ ft
Work Step by Step
Sum the lengths of the sides.
$\frac{1}{5}+\frac{3}{5}+\frac{7}{10}=\frac{1\times2}{5\times2}+\frac{3\times2}{5\times2}+\frac{7}{10}=\frac{2}{10}+\frac{6}{10}+\frac{7}{10}=\frac{2+6+7}{10}=\frac{15}{10}$
Reduce.
$\frac{15}{10}=\frac{15\div5}{10\div5}=\frac{3}{2}=1\frac{1}{2}$
