Zadanie 1 Oblicz
(-0,9):(\frac{7}{9})^{-1}+(0,4)^2*\sqrt{6\frac{1}{4}}+3,6*(-\frac{1}{12})=
(-\frac{9}{10})*\frac{9}{7}+0,16*\sqrt{\frac{25}{4}}+\frac{36}{10}*(-\frac{1}{12})=
-\frac{81}{70}+0,16*\frac{5}{2}-\frac{3}{10}=-\frac{81}{70}+0,16*2,5-\frac{3}{10}=
-\frac{81}{70}+\frac{4}{10}-\frac{3}{10}=\frac{-81+28-21}{70}=-\frac{37}{35}=-1\frac{2}{35}