Answer
13 yd 1 ft
Work Step by Step
There are 3 ft per yard. Divide 40 by 3 to find how many yards. The remainder can be expressed as feet.
$\ \ \ \ \ 13\ yd$
$3\big)\overline{\ 40}$
$\ \ \ \ \ \underline3$
$\ \ \ \ \ \ 10$
$\ \ \ \ \ \ \ \,\underline9$
$\ \ \ \ \ \ \ \ 1\ ft$