Question

Помогите пожалуйста задание2,4,6 дою 10баллов

Answer 1

$2) : frac{4}{5} times 2 : frac{1}{2} div 6 = frac{4}{5} times frac{5}{2} div 6 = frac{1}{3}$
$1) : frac{4}{5} times frac{5}{2} = frac{4 times 5}{5 times 2} = frac{2 times 1}{1 times 1} = frac{2}{1} = 2$
$2) : 2 div 6 = frac{2}{6} = : frac{2}{1} div frac{6}{1} = frac{2}{1} times frac{1}{6} = frac{2 times 1}{1 times 6} = frac{1 times 1}{1 times 3} = frac{1}{3} .$

Ответ:
$frac{1}{3}$




$4) : : 26 div 3 : frac{1}{4} times frac{1}{16 } = 26 div frac{13}{4} times : frac{1}{ 16 } = 1 : frac{1}{3}$

$1) 26 div frac{13}{4} = 26 times frac{4}{13} = frac{26 times 4}{1 times 13} = frac{2 times 4}{1 times 1} = frac{8}{1} = 8$

$2) : 8 times frac{1}{6} = frac{8 times 1}{1 times 6} = frac{8 div 2 times 1}{1 times 6 div 2} = frac{4 times 1}{1 times 3} = frac{4}{3} = 1 : frac{1}{3}$

Ответ:

$1 : frac{1}{ 3}$




$6) : 1 : frac{1}{7} times frac{3}{4} div frac{3}{10} = frac{8}{7} times frac{3}{4} div frac{3}{10} = 2 : frac{6}{7}$

$1) : frac{8}{7} times frac{3}{4} = frac{8 times 3}{7 times 4} = frac{8 div 4 times 3}{7 times 4 div 4} = frac{2 times 3}{7 times 1} = frac{6}{7}$

$2) : frac{6}{7} div frac{3}{10} = frac{6}{7} times frac{10}{3} = frac{6 times10 }{7 times 3} = frac{6 div 3 times 10}{7 times 1} = frac{2 times 10}{7 times 1} = frac{20}{7} = 2 : frac{6}{7}$
Ответ:
$2 : frac{6}{7}$

Answer 2

помогла