[tex] \frac{1}{4} - \frac{1}{16} = \frac{4}{16} - \frac{1}{16} = \frac{3}{16} \\ \frac{49} {55} - \frac{4}{5} = \frac{49}{55} - \frac{44}{55} = \frac{5}{55} \\ \frac{3}{4} - \frac{9}{32} = \frac{24}{32} - \frac{9}{32} = \frac{15}{32} \\ \frac{67}{72} - \frac{3}{8} = \frac{67}{72} - \frac{27}{72} = \frac{40}{72} [/tex]
[tex] \frac{3}{8} - \frac{1}{3} = \frac{9}{24} - \frac{8}{24} = \frac{1}{24} \\ \frac{6}{7} - \frac{4}{5} = \frac{30}{35} - \frac{28}{35} = \frac{2}{35} \\ \frac{5}{9} - \frac{1}{10} = \frac{50}{90} - \frac{9}{90} = \frac{41}{90} [/tex]
[tex] \frac{8}{9} - \frac{4}{7} = \frac{56}{63} - \frac{36}{63} = \frac{20}{63} \\ 11. \\ [/tex]
[tex] \frac{1}{8} - \frac{1}{12} = \frac{3}{24} - \frac{2}{24} = \frac{1}{24} \\ \frac{15}{36} - \frac{7}{30} = \frac{75}{180} - \frac{42}{180} = \frac{33}{180} \\ \frac{4}{21} - \frac{1}{18} = \frac{24}{126} - \frac{7}{126} = \frac{17}{126} \\ \frac{9}{42} - \frac{5}{56} = \frac{36}{168} - \frac{15}{168} = \frac{21}{168} [/tex]
Są to zadania banalnie proste, które powinieneś sam rozwiązać aczkolwiek brakuje komuś chyba chęci
