Odpowiedź:
ZAD1: C
[tex]7*\frac{5}{14} = \frac{5}{2} = 2\frac{1}{2} \\\\\frac{7}{24}*8 = \frac{7}{3} =2\frac{1}{3}[/tex]
ZAD2: D
[tex]6*\frac{4}{5} =\frac{24}{5} =4\frac{4}{5} \\\\14*\frac{4}{10} =\frac{56}{10} =5\frac{6}{10}[/tex]
ZAD3: A,D
[tex]3\frac{3}{14} * 7 = \frac{45}{14} *7=\frac{45}{2} = 22\frac{1}{2}[/tex]
[tex]3*7\frac{3}{14} = 21\frac{1}{2} \\9*2\frac{5}{14}= 21\frac{3}{14}[/tex]
