Odpowiedź :
[tex]1 + \frac{5}{8} = 1\frac{5}{8}\\\\0:\frac{3}{7} = 0\\\\1 - \frac{7}{15} = \frac{15}{15}-\frac{7}{15} = \frac{8}{15}\\\\\frac{2}{8}-0 = \frac{2}{8}=\frac{1}{4}\\\\1\times9\frac{7}{8} = 9\frac{7}{8}\\\\\frac{3}{5}:2\frac{2}{5} = \frac{3}{5}:\frac{12}{5} = \frac{3}{5}\times\frac{5}{12} = \frac{1}{4}[/tex]