Odpowiedź:
b) 2[tex]\frac{2}{5}[/tex] - [tex]\frac{3}{5}[/tex] = [tex]\frac{12}{5} - \frac{3}{5} = \frac{9}{5} = 1\frac{4}{5}[/tex]
c) [tex]6\frac{3}{8} - 2\frac{7}{8} = \frac{51}{8} - \frac{23}{8} =\frac{28}{8} = \frac{7}{2} = 3\frac{1}{2}[/tex]
d) [tex]25\frac{3}{10} - 14\frac{9}{10} = \frac{253}{10} - \frac{149}{10} = \frac{104}{10} = \frac{52}{5} = 10\frac{2}{5}[/tex]
pozdro
