Đáp án: Giải thích các bước giải: a) $\frac{-5}{9}$ : x = $\frac{8}{3}$ $\frac{-5}{9}$ x $\frac{1}{x}$ = $\frac{8}{3}$ $\frac{1}{x}$ = $\frac{8}{3}$ : $\frac{-5}{9}$ $\frac{1}{x}$ = $\frac{-24}{5}$ x = $\frac{-5}{24}$ b) $\frac{-7}{2}$ : x = $\frac{4}{5}$ $\frac{-7}{2}$ x $\frac{1}{x}$ = $\frac{4}{5}$ $\frac{1}{x}$ = $\frac{4}{5}$ : $\frac{-7}{2}$ $\frac{1}{x}$ = $\frac{-8}{35}$ x = $\frac{-35}{8}$ Bình luận
$a)$ $\text{ $\frac{5}{9}$ ÷ x = $\frac{8}{3}$ }$ $\text{ x = $\frac{5}{9}$ ÷ $\frac{8}{3}$ }$ $\text{ x = $\frac{5}{24}$ }$ $b)$ $\text{ $\frac{7}{2}$ ÷ x = $\frac{4}{5}$ }$ $\text{ x = $\frac{7}{2}$ ÷ $\frac{4}{5}$ }$ $\text{ x = $\frac{35}{8}$ }$ Bình luận
Đáp án:
Giải thích các bước giải:
a) $\frac{-5}{9}$ : x = $\frac{8}{3}$
$\frac{-5}{9}$ x $\frac{1}{x}$ = $\frac{8}{3}$
$\frac{1}{x}$ = $\frac{8}{3}$ : $\frac{-5}{9}$
$\frac{1}{x}$ = $\frac{-24}{5}$
x = $\frac{-5}{24}$
b) $\frac{-7}{2}$ : x = $\frac{4}{5}$
$\frac{-7}{2}$ x $\frac{1}{x}$ = $\frac{4}{5}$
$\frac{1}{x}$ = $\frac{4}{5}$ : $\frac{-7}{2}$
$\frac{1}{x}$ = $\frac{-8}{35}$
x = $\frac{-35}{8}$
$a)$
$\text{ $\frac{5}{9}$ ÷ x = $\frac{8}{3}$ }$
$\text{ x = $\frac{5}{9}$ ÷ $\frac{8}{3}$ }$
$\text{ x = $\frac{5}{24}$ }$
$b)$
$\text{ $\frac{7}{2}$ ÷ x = $\frac{4}{5}$ }$
$\text{ x = $\frac{7}{2}$ ÷ $\frac{4}{5}$ }$
$\text{ x = $\frac{35}{8}$ }$