Odpowiedź:
[tex]\frac{5}{6} - \frac{2}{3} = \frac{15}{18} - \frac{12}{18} =\frac{3}{18} = \frac{1}{6}[/tex]
[tex]1\frac{1}{4} - \frac{2}{3} + 2\frac{5}{6} = \frac{15}{12} - \frac{8}{12} + \frac{34}{12} = \frac{41}{18} =\frac{5}{18}[/tex]
[tex]7\frac{10}{35} + 5\frac{4}{7} - 3\frac{2}{5} = \frac{255}{35} + \frac{39}{7} - \frac{17}{5} -= \frac{255}{35} + \frac{195}{35} - \frac{119}{35} = \frac{331}{35} = 9\frac{16}{35}[/tex]
[tex]1\frac{13}{25} + \frac{17}{25} - 1\frac{4}{5} = \frac{38}{25} + \frac{17}{25} - \frac{9}{5} = \frac{55}{25} - \frac{45}{25} = \frac{10}{25} = \frac{2}{5}[/tex]
[tex]\frac{36}{35} - \frac{5}{7} - \frac{5}{35} = \frac{36}{35} - \frac{25}{35} - \frac{5}{35} = \frac{6}{35}[/tex]
[tex]6\frac{3}{10} + 3\frac{4}{5} - 3\frac{2}{5} + 3\frac{1}{2} = \frac{63}{10} + \frac{38}{10} - \frac{34}{10} + \frac{35}{10} = \frac{102}{10} = 10\frac{2}{10} = 10\frac{1}{5}[/tex]
