[tex]0,7= \frac{7}{10};1,(6)=1 \frac{6}{9}= \frac{15}{9} [/tex]
[tex]- \frac{7}{10} * \frac{15}{9} =- \frac{7}{6} [/tex]
[tex] 3 \frac{17}{10} - \frac{317}{1000} = \\ \\ \frac{47}{10} - \frac{317}{100} = \frac{470-317}{1000}= \frac{153}{1000} \\ \\ \frac{4}{5}* (\frac{4}{5})^{2} = \\ \\ \frac{4}{5}* \frac{4^{2}}{5^{2}} = \frac{4^{2}*4}{5^{2}*5} = \frac{64}{125} \\ \\ \\ [/tex]
[tex] (\frac{25}{10}) ^{6}: (\frac{25}{10}) ^{4}= (\frac{25}{10}) ^{6}*( \frac{10}{25})^{4} = \frac{25^{2}}{10^{2}} = \frac{625}{100}= \frac{125}{20} = \frac{25}{4} [/tex]
[tex]( \frac{3}{4})^{-2} = \frac{9}{16} [/tex]
[tex](- \frac{12}{10})^{7} :(- \frac{12}{10})^{6}=(- \frac{12}{10})^{1}=- \frac{6}{5} [/tex]
[tex][ \frac{2}{3}*( \frac{2}{3})^{2}*( \frac{2}{3})^{3}]:(- \frac{2}{3})^{6} \\ \\ ( \frac{2}{3})^{1+2+3} :(- \frac{2}{3})^{6} \\ \\ ( \frac{2}{3})^{6}:(- \frac{2}{3})^{6}=1[/tex]
