Question

Convert 9ft -2 1/2in to inches

Answer 1

we know that

$1$ ft is equal to $12$ in

so

$9$ ft is equal to

by proportion

$\frac{1}{12} =\frac{9}{x} \\ \\ x=12*9\\ \\ x=108$ in

therefore

$9ft-2\frac{1}{2} in=108 in-2.5 in\\ \\ =105.5 in$

$105.5 in=105 \frac{1}{2}in$

the answer is

$105 \frac{1}{2}in$

Answer 2

NO THE FIRST ANSWERS WRONG
9 foot = 9*12 = 108 inches minus 2.5 inches would return the answer 105.5 inches