Question

Qual é a forma decimal de 8/9? 

a) 8,9

b) 0,8

c) 0,888...

d) 0,888

​

Answer 1

Explicação passo-a-passo:

C) 0, 888...

É só dividir

Answer 2

Resposta:

Olá

Explicação passo-a-passo:

As alternativa corretas são c) e d) . Pois,

Dividindo 8 por 9, temos 0.

$\begin{matrix}\space\space\space\space\emptyspace0\space\space\space\space\space\space\space\space\space\space\space\space\\ 9\overline{|\smallspace8}\space\space\space\space\space\space\space\space\space\space\space\space\\ \space\space\space\space\underline{\emptyspace0}\space\space\space\space\space\space\space\space\space\space\space\space\end{matrix}$

subtraindo 0 de 8

$\begin{matrix}\space\space\space\space\emptyspace0\space\space\space\space\space\space\space\space\space\space\space\space\\ 9\overline{|\smallspace8}\space\space\space\space\space\space\space\space\space\space\space\space\\ \space\space\space\space\underline{\emptyspace0}\space\space\space\space\space\space\space\space\space\space\space\space\\ \space\space\space\space\emptyspace8\space\space\space\space\space\space\space\space\space\space\space\space\end{matrix}$

Acrescentando uma casa decimal e zero ao dividendo, obtemos

$\begin{matrix}\space\space\space\space\emptyspace0.\space\space\space\space\space\space\space\space\space\space\space\\ 9\overline{|\smallspace8.0}\space\space\space\space\space\space\space\space\space\\ \space\space\space\space\underline{\emptyspace0}\space\space\space\space\space\space\space\space\space\space\space\space\\ \space\space\space\space\emptyspace8\emptyspace0\space\space\space\space\space\space\space\space\space\space\end{matrix}$

Divida 80 por 9 para obter 8

$\begin{matrix}\space\space\space\space\emptyspace0.\emptyspace8\space\space\space\space\space\space\space\space\space\\ 9\overline{|\smallspace8.0}\space\space\space\space\space\space\space\space\space\\ \space\space\space\space\underline{\emptyspace0}\space\space\space\space\space\space\space\space\space\space\space\space\\ \space\space\space\space\emptyspace8\emptyspace0\space\space\space\space\space\space\space\space\space\space\end{matrix}$

Seguindo com esse processo, obtemos o resultado de 0,8888

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