Odpowiedź:
A a) [tex]\frac{3}{4} + \frac{1}{2} = \frac{3}{4} + \frac{2}{4} = \frac{5}{4} = 1\frac{1}{4}[/tex]
A d) [tex]\frac{7}{12} + \frac{3}{4} = \frac{7}{12} + \frac{9}{12} = \frac{16}{12} = 1\frac{4}{12} = 1\frac{1}{3}[/tex]
B a)[tex]\frac{1}{3} + \frac{1}{5} = \frac{5}{15} + \frac{3}{15} = \frac{8}{15}[/tex]
B d)[tex]\frac{4}{7} - \frac{1}{6} = \frac{24}{42} - \frac{7}{42} = \frac{17}{42}[/tex]
C a)[tex]\frac{2}{3} + \frac{3}{4} = \frac{8}{12} + \frac{9}{12} = \frac{17}{12} = 1\frac{5}{12}[/tex]
C d)[tex]\frac{2}{3} - \frac{2}{4} = \frac{8}{12} - \frac{6}{12} =\frac{2}{12} =\frac{1}{6}[/tex]
D a)[tex]\frac{2}{10} + \frac{4}{15} = \frac{6}{30} + \frac{8}{30} = \frac{14}{30} = \frac{7}{15}[/tex]
D d) [tex]\frac{4}{9} - \frac{5}{12} = \frac{16}{36} - \frac{15}{36} = \frac{31}{36}[/tex]
Szczegółowe wyjaśnienie:
licze na naj :)
