$15 : 3 = \frac{15}{3} = 5$

$13 : 2 = \frac{13}{2}$

$17 : 4 = \frac{17}{4}$

$27 : 5 = \frac{27}{5}$

$123 : 13 = \frac{123}{13}$

$123 : 12 = \frac{123}{12} = \frac{41}{4}$

$168 : 22 = \frac{168}{22} = \frac{84}{11}$

$168 : 23 = \frac{168}{23}$