Răspuns:
[tex]\frac{19}{36} - \frac{10}{36} =\frac{9}{36} \\\frac{11}{16} -\frac{7}{16}=\frac{4}{16} \\\frac{9}{36} \leq\frac{4}{16}\\\frac{56}{20} -\frac{43}{20} =\frac{3}{20} \\\frac{37}{31} -\frac{5}{31} =\frac{32}{31} \\\frac{3}{20}\leq \frac{32}{31}[/tex]