[tex]3,5:(2 \frac{3}{4}*4-4^2)=\frac{35}{10}:( \frac{11}{\not{4}^1}*\not{4}^1-16)=\frac{7}{2}:(11-16) =\frac{7}{2}:(-5) =\\\\=\frac{7}{2}*(-\frac{1}{5})=-\frac{7}{10}[/tex]
