Zadanie 2
\frac{2^{-2}+5^0}{(0,5)^{-2}-5*(-2)^2+(\frac{2}{3})^{-2}}+4,75=\frac{(\frac{1}{2})^2+1}{(\frac{1}{2})^{-2}-5*4+(\frac{3}{2})^2}+4,75=\frac{1\frac{1}{4}}{2^2-20+\frac{9}{4}}+4,75=\frac{1\frac{1}{4}}{4-20+2\frac{1}{4}}+4,75=\frac{\frac{5}{4}}{-16+2\frac{1}{4}}+4,75=
\frac{\frac{5}{4}}{-13\frac{3}{4}}+4,75=\frac{5}{4}:(-\frac{55}{4})+4,75=-\frac{\not5^1}{\not4}*\frac{\not4}{\not55^{11}}+4,75=-\frac{1}{11}+4\frac{3}{4}=4\frac{33}{44}-\frac{4}{44}=4\frac{29}{44}