Question

решите даю 25баллов пж​

Answer 1

$\displaystyle 1)2,3(-8)-9,8:(6,7-8,1)=-18,4-\frac{49}{5}:(-1,4)=-18,4-\frac{49}{5}:(-\frac{7}{5})=-18,4+\frac{49}{5}*\frac{5}{7}=-18,4+7=-11,4\\ \\2)(-1,6+3,64:(-1,4)):(-0,01):(-0,7)=\\\\(-\frac{8}{5}+\frac{91}{25}:(-\frac{7}{5})):(-\frac{1}{100}):(-\frac{7}{10})=(-\frac{8}{5}-\frac{91}{25}*\frac{5}{7}):(-\frac{1}{100}):(-\frac{7}{10})=\\\\(-\frac{8}{5}-\frac{13}{5}):(-\frac{1}{100}):(-\frac{7}{10})=-\frac{21}{5}:(-\frac{1}{100}):(-\frac{7}{10})=-\frac{21}{5}*100*\frac{10}{7}=\\\\-3*20*10=-600$