Question

срочно даю 50 можно без ​

Answer 1

Ответ:

вот решение на фото обращацтесь

Answer 2

$(2\frac{5}{9} -1\frac{20}{21} )/1\frac{8}{49} +1\frac{8}{9}/6 =(\frac{23}{9} -\frac{41}{21} )/\frac{57}{49} +\frac{17}{9}/\frac{6}{1} =(\frac{161}{63} -\frac{123}{63} )/\frac{57}{49} +\frac{17}{9}*\frac{1}{6}=\frac{38}{63} *\frac{49}{57} +\frac{17}{9}*\frac{1}{6}=\frac{2}{9} *\frac{7}{3} +\frac{17}{9}*\frac{1}{6}=\frac{14}{27}+\frac{17}{54}=\frac{28}{54}+\frac{17}{54}=\frac{45}{54}=\frac{5}{6}$