8/15:x=-20/21 x:(-4/21)=14/5 2 câu dễ nhé ! 27/07/2021 Bởi Piper 8/15:x=-20/21 x:(-4/21)=14/5 2 câu dễ nhé !
$\frac{8}{15}$ : ${x}$ = $\frac{-20}{21}$ ⇒${x}$ = $\frac{8}{15}$ : $\frac{-20}{21}$ ⇒${x}$ = $\frac{-14}{25}$ $\text{Vậy ${x}$ = $\frac{-14}{25}$}$ ${x}$ : ($\frac{-4}{21}$) = $\frac{14}{5}$ ⇒${x}$ = $\frac{14}{5}$. $\frac{-4}{21}$⇒${x}$ = $\frac{-8}{15}$ $\text{Vậy ${x}$ = $\frac{-8}{15}$ }$ $\text{STUDY WELL!}$ Bình luận
a, $\frac{8}{15}$ : x = $\frac{-20}{21}$ x = $\frac{8}{15}$ : $\frac{-20}{21}$ x = $\frac{-14}{25}$ b, x : $\frac{-4}{21}$ = $\frac{14}{5}$ x = $\frac{14}{5}$ . $\frac{-4}{21}$ x = $\frac{-8}{15}$ Bình luận
$\frac{8}{15}$ : ${x}$ = $\frac{-20}{21}$
⇒${x}$ = $\frac{8}{15}$ : $\frac{-20}{21}$
⇒${x}$ = $\frac{-14}{25}$
$\text{Vậy ${x}$ = $\frac{-14}{25}$}$
${x}$ : ($\frac{-4}{21}$) = $\frac{14}{5}$
⇒${x}$ = $\frac{14}{5}$. $\frac{-4}{21}$
⇒${x}$ = $\frac{-8}{15}$
$\text{Vậy ${x}$ = $\frac{-8}{15}$ }$
$\text{STUDY WELL!}$
a, $\frac{8}{15}$ : x = $\frac{-20}{21}$
x = $\frac{8}{15}$ : $\frac{-20}{21}$
x = $\frac{-14}{25}$
b, x : $\frac{-4}{21}$ = $\frac{14}{5}$
x = $\frac{14}{5}$ . $\frac{-4}{21}$
x = $\frac{-8}{15}$