Exercise $5\mathrm{.}25$ Express the following base $10$ numbers in $16-$bit fixed$-$point sign$/$

magnitude format with eight integer bits and eight fraction bits. Express your

answer in hexadecimal.

$($a$)"13\mathrm{.}5625"$

$($b$)42\mathrm{.}3125$

$($c$)"17\mathrm{.}15625"$