Răspuns:
[tex] \frac{1}{3} \times 4 = \frac{4}{3} [/tex]
[tex] \frac{3}{5} \times 4 = \frac{12}{5} [/tex]
[tex] \frac{5}{6} \times 4 = \frac{10}{3} [/tex]
[tex] \frac{1}{2} \times 4 = 2[/tex]
[tex] \frac{3}{4} \times 4 = 3[/tex]
[tex] \frac{3}{8} \times 4 = \frac{3}{2} [/tex]
[tex] \frac{5}{16} \times 4 = \frac{5}{4} [/tex]
[tex] \frac{7}{4} \times 4 = 7[/tex]
[tex] \frac{7}{20} \times 4 = \frac{7}{5} [/tex]