Răspuns:

[tex]\frac{13}{5} = 2\frac{3}{5} \\\\\frac{25}{8} = 3\frac{1}{8}\\\\\frac{72}{15} = 4\frac{12}{15} \\\\\frac{90}{13} = 6\frac{12}{13} \\[/tex]

Explicație pas cu pas:

[tex]\frac{a}{b} = a:b=c, rest(r) =c\frac{r}{b}[/tex]