$\color{black}{\frac{4}{9}.\frac{13}{3}-\frac{4}{9}.\frac{40}{9}+\frac{8}{182}}$ 24/08/2021 Bởi Samantha $\color{black}{\frac{4}{9}.\frac{13}{3}-\frac{4}{9}.\frac{40}{9}+\frac{8}{182}}$
Đáp án: $\text{ $\dfrac{4}{9}$ . $\dfrac{13}{3}$ – $\dfrac{4}{9}$ . $\dfrac{40}{9}$ + $\dfrac{8}{182}$}$ $\text{= $\dfrac{4}{9} $. ( $\dfrac{13}{3}$ – $\dfrac{40}{9}$) + $\dfrac{4}{91}$ }$ $\text{= $\dfrac{4}{9}$ . (-$\dfrac{1}{9}$) + $\dfrac{8}{91}$ }$ $\text{ = $\dfrac{-4}{81}$ + $\dfrac{8}{91}$ }$ $\text{= $\dfrac{-364}{7371}$ + $\dfrac{324}{7371}$ }$ $\text{= $\dfrac{-40}{7371}$ }$ Bình luận
= $\dfrac{4}{9}$ . `(`$\dfrac{13}{3}$ – $\dfrac{40}{9}$`)` + $\dfrac{8}{182}$ = $\dfrac{4}{9}$ . $\dfrac{-1}{9}$ + $\dfrac{8}{182}$ = $\dfrac{-4}{81}$ + $\dfrac{8}{182}$ = $\dfrac{-40}{7131}$ Bình luận
Đáp án:
$\text{ $\dfrac{4}{9}$ . $\dfrac{13}{3}$ – $\dfrac{4}{9}$ . $\dfrac{40}{9}$ + $\dfrac{8}{182}$}$
$\text{= $\dfrac{4}{9} $. ( $\dfrac{13}{3}$ – $\dfrac{40}{9}$) + $\dfrac{4}{91}$ }$
$\text{= $\dfrac{4}{9}$ . (-$\dfrac{1}{9}$) + $\dfrac{8}{91}$ }$
$\text{ = $\dfrac{-4}{81}$ + $\dfrac{8}{91}$ }$
$\text{= $\dfrac{-364}{7371}$ + $\dfrac{324}{7371}$ }$
$\text{= $\dfrac{-40}{7371}$ }$
= $\dfrac{4}{9}$ . `(`$\dfrac{13}{3}$ – $\dfrac{40}{9}$`)` + $\dfrac{8}{182}$
= $\dfrac{4}{9}$ . $\dfrac{-1}{9}$ + $\dfrac{8}{182}$
= $\dfrac{-4}{81}$ + $\dfrac{8}{182}$
= $\dfrac{-40}{7131}$