[tex]-\frac{3}{4}\cdot(-7\frac{3}{4}) = -\frac{3}{4}\cdot(-\frac{31}{4}) = \frac{93}{16}\\\\-1\frac{3}{4}\cdot(-7\frac{3}{4}) = -\frac{7}{4}\cdot(-\frac{31}{4}) = \frac{217}{16}\\\\\frac{93}{16} < \frac{217}{16}\\\\\underline{-\frac{3}{4}\cdot(-7\frac{3}{4}) < -1\frac{3}{4}\cdot(-7\frac{3}{4})}[/tex]
Wyjaśnienie:
[tex](-)\cdot (-) = (+)\\(-)\cdot(+) = (-)\\(+)\cdot(+) = (+)[/tex]
