Răspuns:
[tex]5. \: \frac{143}{5} < \frac{144}{5} \\ \frac{143}{5} < \frac{145}{5} \\ \frac{143}{5} < \frac{146}{5} [/tex]
[tex]6. \: \frac{11}{47} < \frac{12}{47} \\ \frac{10}{47} < \frac{12}{47} \\ \frac{9}{47} < \frac{12}{47} [/tex]
[tex]7 . \: \: a) \: \frac{39}{215} < \frac{58}{215} < \frac{74}{215} \\ b) \: \frac{450}{273} < \frac{580}{273} < \frac{893}{273} \\ c) \: \frac{119}{12} > \frac{100}{12} > \frac{94}{15} \\ d) \: \frac{15}{113} < \frac{1000}{113} < \frac{2020}{113} [/tex]
