Odpowiedź :
[tex]\frac{5}{6} : (1\frac{3}{4} + 2 \frac{1}{2}) = \frac{5}{6} : ( 1\frac{3}{4} + 2 \frac{2}{4}) = \frac{5}{6} : 3 \frac{5}{4} = \frac{5}{6} : \frac{17}{4} = \frac{5}{6} *\frac{4}{17} = \frac{10}{51}[/tex]
[tex]\frac{5}{6} : (1\frac{3}{4} + 2 \frac{1}{2}) = \frac{5}{6} : ( 1\frac{3}{4} + 2 \frac{2}{4}) = \frac{5}{6} : 3 \frac{5}{4} = \frac{5}{6} : \frac{17}{4} = \frac{5}{6} *\frac{4}{17} = \frac{10}{51}[/tex]