Question

Вообщем, решить то что я кинул)

Answer 1

4)

в)

$3 frac{1}{8} div (x - 4 frac{7}{24} ) = 2 frac{7}{9} \ frac{17}{18} + 1 frac{5}{6} = 1 frac{32}{18} = 2 frac{14}{18} = 2 frac{7}{9}$

$x - 4 frac{7}{24} = 3 frac{1}{8} div 2 frac{7}{9} = frac{25}{8} div frac{25}{9} \ = frac{25}{8} times frac{9}{25} = frac{9}{8} = 1 frac{1}{8}$

$x = 1 frac{1}{8} + 4 frac{7}{24} = 1 frac{3}{24} + 4 frac{7}{24} = \ 5 frac{10}{24} = 5 frac{5}{12}$

6.

$a) frac{14}{15} times frac{45}{84} = frac{3}{6} + frac{2}{5} = frac{15}{30} + frac{12}{30} = \ = frac{27}{30} = frac{9}{10} = 0.9$

Б)

$frac{3}{4} times frac{8}{9} = frac{2}{3} \ 3 frac{1}{18} - frac{2}{3} = 3 frac{1}{18} - frac{12}{18} =$

$2 frac{19}{18} - frac{12}{18} = 2 frac{7}{18}$

В)

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

Г)

$1 - frac{1}{3} = frac{3}{3} - frac{1}{3} = frac{2}{3} \ frac{1}{3} - frac{1}{4} = frac{4}{12} - frac{3}{12} = frac{1}{12}$

$frac{2}{3} div frac{1}{12} = frac{2}{3} times frac{12}{1} = 8$