Question

1) (1- 4/9) : (1/3-14) 2) (5/7-2/3) : (4/9-5/51) помогите. срочно скоро в школу в​

Answer 1

Ответ:

$1)-\frac{5}{123}\\\\2)\frac{51}{371}$

Пошаговое объяснение:

$I)(1-\frac{4}{9}):(\frac{1}{3}-14)=-\frac{5}{123}\\\\1)1-\frac{4}{9}=\frac{9-4}{9}=\frac{5}{9}\\\\2)\frac{1}{3}-14=\frac{1-42}{3}=-\frac{41}{3}\\\\3)\frac{5}{9}:(-\frac{41}{3})=\frac{5}{9}*(-\frac{3}{41})=-\frac{5}{123}\\\\II)(\frac{5}{7}-\frac{2}{3}):(\frac{4}{9}-\frac{5}{51})=\frac{51}{371}\\\\1)\frac{5}{7}-\frac{2}{3}= \frac{15-14}{21}=\frac{1}{21}\\\\2)\frac{4}{9}-\frac{5}{51}=\frac{68-15}{153}=\frac{53}{153}\\\\3)\frac{1}{21}:\frac{53}{153}=\frac{1}{21}*\frac{153}{53}=\frac{51}{371}$