$\frac{x + 5}{x - 3}$
 
при x = −13
$\frac{-13 + 5}{-13 - 3} = \frac{-8}{-16} = 0,5$
 
при x = −5
$\frac{-5 + 5}{-5 - 3} = \frac{0}{-8} = 0$
 
при x = −0,2
$\frac{-0,2 + 5}{-0,2 - 3} = \frac{4,8}{-3,2} = -\frac{48}{32} = -\frac{3}{2} = -1,5$
 
при x = 0
$\frac{0 + 5}{0 - 3} = \frac{5}{-3} = -1\frac{2}{3}$
 
при $x = \frac{1}{17}$
$\frac{\frac{1}{17} + 5}{\frac{1}{17} - 3} = \frac{86}{17} : (-\frac{50}{17}) = \frac{86}{17} * (-\frac{17}{50}) = \frac{172}{1} * (-\frac{1}{100}) = -1,72$
 
при x = 1
$\frac{1 + 5}{1 - 3} = \frac{6}{-2} = -3$
 
при $x = 5\frac{2}{3}$
$\frac{5\frac{2}{3} + 5}{5\frac{2}{3} - 3} = 10\frac{2}{3} : 2\frac{2}{3} = \frac{32}{3} : \frac{8}{3} = \frac{32}{3} * \frac{3}{8} = \frac{4}{1} * \frac{1}{1} = 4$
 
при x = 7
$\frac{7 + 5}{7 - 3} = \frac{12}{4} = 3$