Pré-álgebra Exemplos

$42.1 \div 0.3$

Etapa 1

Estabeleça o problema de divisão em formato de divisão longa.

$0$

$3$

$4$

$2$

$1$

Etapa 2

Mova o sinal de decimal pela mesma quantidade de casas em ambos os números, até que o divisor seja um número inteiro.

$3$

$4$

$2$

$1$

Etapa 3

Divida $4$ por $3$ . Coloque esse dígito no quociente no topo do símbolo de divisão.

	$1$
$3$	$4$	$2$	$1$

Etapa 4

Multiplique o dígito de quociente mais novo $(1)$ pelo divisor $3$ .

	$1$
$3$	$4$	$2$	$1$
$-$	$3$

Etapa 5

Subtraia $3$ de $4$ .

	$1$
$3$	$4$	$2$	$1$
$-$	$3$
	$1$

Etapa 6

Reduza o próximo número do dividendo.

	$1$
$3$	$4$	$2$	$1$
$-$	$3$
	$1$	$2$

Etapa 7

Divida $12$ por $3$ . Coloque esse dígito no quociente no topo do símbolo de divisão.

	$1$	$4$
$3$	$4$	$2$	$1$
$-$	$3$
	$1$	$2$

Etapa 8

Multiplique o dígito de quociente mais novo $(4)$ pelo divisor $3$ .

	$1$	$4$
$3$	$4$	$2$	$1$
$-$	$3$
	$1$	$2$
$-$	$1$	$2$

Etapa 9

Subtraia $12$ de $12$ .

	$1$	$4$
$3$	$4$	$2$	$1$
$-$	$3$
	$1$	$2$
$-$	$1$	$2$
		$0$

Etapa 10

Reduza o próximo número do dividendo.

	$1$	$4$
$3$	$4$	$2$	$1$
$-$	$3$
	$1$	$2$
$-$	$1$	$2$
		$0$	$1$

Etapa 11

Divida $1$ por $3$ . Coloque esse dígito no quociente no topo do símbolo de divisão.

	$1$	$4$	$0$
$3$	$4$	$2$	$1$
$-$	$3$
	$1$	$2$
$-$	$1$	$2$
		$0$	$1$

Etapa 12

Multiplique o dígito de quociente mais novo $(0)$ pelo divisor $3$ .

	$1$	$4$	$0$
$3$	$4$	$2$	$1$
$-$	$3$
	$1$	$2$
$-$	$1$	$2$
		$0$	$1$
	$-$		$0$

Etapa 13

Subtraia $0$ de $1$ .

	$1$	$4$	$0$
$3$	$4$	$2$	$1$
$-$	$3$
	$1$	$2$
$-$	$1$	$2$
		$0$	$1$
	$-$		$0$
			$1$

Etapa 14

Adicione $0$ ao final do dividendo.

	$1$	$4$	$0$
$3$	$4$	$2$	$1$	.	$0$
$-$	$3$
	$1$	$2$
$-$	$1$	$2$
		$0$	$1$
	$-$		$0$
			$1$

Etapa 15

Reduza o próximo número do dividendo.

	$1$	$4$	$0$
$3$	$4$	$2$	$1$	.	$0$
$-$	$3$
	$1$	$2$
$-$	$1$	$2$
		$0$	$1$
	$-$		$0$
			$1$	$0$

Etapa 16

Divida $10$ por $3$ . Coloque esse dígito no quociente no topo do símbolo de divisão.

	$1$	$4$	$0$	.	$3$
$3$	$4$	$2$	$1$	.	$0$
$-$	$3$
	$1$	$2$
$-$	$1$	$2$
		$0$	$1$
	$-$		$0$
			$1$	$0$

Etapa 17

Multiplique o dígito de quociente mais novo $(3)$ pelo divisor $3$ .

	$1$	$4$	$0$	.	$3$
$3$	$4$	$2$	$1$	.	$0$
$-$	$3$
	$1$	$2$
$-$	$1$	$2$
		$0$	$1$
	$-$		$0$
			$1$	$0$
			$-$		$9$

Etapa 18

Subtraia $9$ de $10$ .

	$1$	$4$	$0$	.	$3$
$3$	$4$	$2$	$1$	.	$0$
$-$	$3$
	$1$	$2$
$-$	$1$	$2$
		$0$	$1$
	$-$		$0$
			$1$	$0$
			$-$		$9$
					$1$

Etapa 19

Adicione $0$ ao final do dividendo.

	$1$	$4$	$0$	.	$3$
$3$	$4$	$2$	$1$	.	$0$	$0$
$-$	$3$
	$1$	$2$
$-$	$1$	$2$
		$0$	$1$
	$-$		$0$
			$1$	$0$
			$-$		$9$
					$1$

Etapa 20

Reduza o próximo número do dividendo.

	$1$	$4$	$0$	.	$3$
$3$	$4$	$2$	$1$	.	$0$	$0$
$-$	$3$
	$1$	$2$
$-$	$1$	$2$
		$0$	$1$
	$-$		$0$
			$1$	$0$
			$-$		$9$
					$1$	$0$

Etapa 21

Divida $10$ por $3$ . Coloque esse dígito no quociente no topo do símbolo de divisão.

	$1$	$4$	$0$	.	$3$	$3$
$3$	$4$	$2$	$1$	.	$0$	$0$
$-$	$3$
	$1$	$2$
$-$	$1$	$2$
		$0$	$1$
	$-$		$0$
			$1$	$0$
			$-$		$9$
					$1$	$0$

Etapa 22

Multiplique o dígito de quociente mais novo $(3)$ pelo divisor $3$ .

	$1$	$4$	$0$	.	$3$	$3$
$3$	$4$	$2$	$1$	.	$0$	$0$
$-$	$3$
	$1$	$2$
$-$	$1$	$2$
		$0$	$1$
	$-$		$0$
			$1$	$0$
			$-$		$9$
					$1$	$0$
				$-$		$9$

Etapa 23

Subtraia $9$ de $10$ .

	$1$	$4$	$0$	.	$3$	$3$
$3$	$4$	$2$	$1$	.	$0$	$0$
$-$	$3$
	$1$	$2$
$-$	$1$	$2$
		$0$	$1$
	$-$		$0$
			$1$	$0$
			$-$		$9$
					$1$	$0$
				$-$		$9$
						$1$

Etapa 24

Adicione $0$ ao final do dividendo.

	$1$	$4$	$0$	.	$3$	$3$
$3$	$4$	$2$	$1$	.	$0$	$0$	$0$
$-$	$3$
	$1$	$2$
$-$	$1$	$2$
		$0$	$1$
	$-$		$0$
			$1$	$0$
			$-$		$9$
					$1$	$0$
				$-$		$9$
						$1$

Etapa 25

Reduza o próximo número do dividendo.

	$1$	$4$	$0$	.	$3$	$3$
$3$	$4$	$2$	$1$	.	$0$	$0$	$0$
$-$	$3$
	$1$	$2$
$-$	$1$	$2$
		$0$	$1$
	$-$		$0$
			$1$	$0$
			$-$		$9$
					$1$	$0$
				$-$		$9$
						$1$	$0$

Etapa 26

Divida $10$ por $3$ . Coloque esse dígito no quociente no topo do símbolo de divisão.

	$1$	$4$	$0$	.	$3$	$3$	$3$
$3$	$4$	$2$	$1$	.	$0$	$0$	$0$
$-$	$3$
	$1$	$2$
$-$	$1$	$2$
		$0$	$1$
	$-$		$0$
			$1$	$0$
			$-$		$9$
					$1$	$0$
				$-$		$9$
						$1$	$0$

Etapa 27

Multiplique o dígito de quociente mais novo $(3)$ pelo divisor $3$ .

	$1$	$4$	$0$	.	$3$	$3$	$3$
$3$	$4$	$2$	$1$	.	$0$	$0$	$0$
$-$	$3$
	$1$	$2$
$-$	$1$	$2$
		$0$	$1$
	$-$		$0$
			$1$	$0$
			$-$		$9$
					$1$	$0$
				$-$		$9$
						$1$	$0$
					$-$		$9$

Etapa 28

Subtraia $9$ de $10$ .

	$1$	$4$	$0$	.	$3$	$3$	$3$
$3$	$4$	$2$	$1$	.	$0$	$0$	$0$
$-$	$3$
	$1$	$2$
$-$	$1$	$2$
		$0$	$1$
	$-$		$0$
			$1$	$0$
			$-$		$9$
					$1$	$0$
				$-$		$9$
						$1$	$0$
					$-$		$9$
							$1$

Etapa 29

O resultado da divisão de $42.1 \div 0.3$ é $140.333 \dots$ .

$140.333 \dots$

	$1$	$4$	$0$
$3$	$4$	$2$	$1$	.	$0$
$-$	$3$
	$1$	$2$
$-$	$1$	$2$
		$0$	$1$
	$-$		$0$
			$1$

	$1$	$4$	$0$
$3$	$4$	$2$	$1$	.	$0$
$-$	$3$
	$1$	$2$
$-$	$1$	$2$
		$0$	$1$
	$-$		$0$
			$1$	$0$

	$1$	$4$	$0$	.	$3$
$3$	$4$	$2$	$1$	.	$0$
$-$	$3$
	$1$	$2$
$-$	$1$	$2$
		$0$	$1$
	$-$		$0$
			$1$	$0$

	$1$	$4$	$0$	.	$3$
$3$	$4$	$2$	$1$	.	$0$
$-$	$3$
	$1$	$2$
$-$	$1$	$2$
		$0$	$1$
	$-$		$0$
			$1$	$0$
			$-$		$9$

	$1$	$4$	$0$	.	$3$
$3$	$4$	$2$	$1$	.	$0$
$-$	$3$
	$1$	$2$
$-$	$1$	$2$
		$0$	$1$
	$-$		$0$
			$1$	$0$
			$-$		$9$
					$1$

	$1$	$4$	$0$	.	$3$
$3$	$4$	$2$	$1$	.	$0$	$0$
$-$	$3$
	$1$	$2$
$-$	$1$	$2$
		$0$	$1$
	$-$		$0$
			$1$	$0$
			$-$		$9$
					$1$

	$1$	$4$	$0$	.	$3$
$3$	$4$	$2$	$1$	.	$0$	$0$
$-$	$3$
	$1$	$2$
$-$	$1$	$2$
		$0$	$1$
	$-$		$0$
			$1$	$0$
			$-$		$9$
					$1$	$0$

	$1$	$4$	$0$	.	$3$	$3$
$3$	$4$	$2$	$1$	.	$0$	$0$
$-$	$3$
	$1$	$2$
$-$	$1$	$2$
		$0$	$1$
	$-$		$0$
			$1$	$0$
			$-$		$9$
					$1$	$0$

	$1$	$4$	$0$	.	$3$	$3$
$3$	$4$	$2$	$1$	.	$0$	$0$
$-$	$3$
	$1$	$2$
$-$	$1$	$2$
		$0$	$1$
	$-$		$0$
			$1$	$0$
			$-$		$9$
					$1$	$0$
				$-$		$9$

	$1$	$4$	$0$	.	$3$	$3$
$3$	$4$	$2$	$1$	.	$0$	$0$
$-$	$3$
	$1$	$2$
$-$	$1$	$2$
		$0$	$1$
	$-$		$0$
			$1$	$0$
			$-$		$9$
					$1$	$0$
				$-$		$9$
						$1$

	$1$	$4$	$0$
$3$	$4$	$2$	$1$	.	$0$
$-$	$3$
	$1$	$2$
$-$	$1$	$2$
		$0$	$1$
	$-$		$0$
			$1$

	$1$	$4$	$0$
$3$	$4$	$2$	$1$	.	$0$
$-$	$3$
	$1$	$2$
$-$	$1$	$2$
		$0$	$1$
	$-$		$0$
			$1$	$0$

	$1$	$4$	$0$	.	$3$
$3$	$4$	$2$	$1$	.	$0$
$-$	$3$
	$1$	$2$
$-$	$1$	$2$
		$0$	$1$
	$-$		$0$
			$1$	$0$

	$1$	$4$	$0$	.	$3$
$3$	$4$	$2$	$1$	.	$0$
$-$	$3$
	$1$	$2$
$-$	$1$	$2$
		$0$	$1$
	$-$		$0$
			$1$	$0$
			$-$		$9$

	$1$	$4$	$0$	.	$3$
$3$	$4$	$2$	$1$	.	$0$
$-$	$3$
	$1$	$2$
$-$	$1$	$2$
		$0$	$1$
	$-$		$0$
			$1$	$0$
			$-$		$9$
					$1$

	$1$	$4$	$0$	.	$3$
$3$	$4$	$2$	$1$	.	$0$	$0$
$-$	$3$
	$1$	$2$
$-$	$1$	$2$
		$0$	$1$
	$-$		$0$
			$1$	$0$
			$-$		$9$
					$1$

	$1$	$4$	$0$	.	$3$
$3$	$4$	$2$	$1$	.	$0$	$0$
$-$	$3$
	$1$	$2$
$-$	$1$	$2$
		$0$	$1$
	$-$		$0$
			$1$	$0$
			$-$		$9$
					$1$	$0$

	$1$	$4$	$0$	.	$3$	$3$
$3$	$4$	$2$	$1$	.	$0$	$0$
$-$	$3$
	$1$	$2$
$-$	$1$	$2$
		$0$	$1$
	$-$		$0$
			$1$	$0$
			$-$		$9$
					$1$	$0$

	$1$	$4$	$0$	.	$3$	$3$
$3$	$4$	$2$	$1$	.	$0$	$0$
$-$	$3$
	$1$	$2$
$-$	$1$	$2$
		$0$	$1$
	$-$		$0$
			$1$	$0$
			$-$		$9$
					$1$	$0$
				$-$		$9$

	$1$	$4$	$0$	.	$3$	$3$
$3$	$4$	$2$	$1$	.	$0$	$0$
$-$	$3$
	$1$	$2$
$-$	$1$	$2$
		$0$	$1$
	$-$		$0$
			$1$	$0$
			$-$		$9$
					$1$	$0$
				$-$		$9$
						$1$

	$1$	$4$	$0$
$3$	$4$	$2$	$1$	.	$0$
$-$	$3$
	$1$	$2$
$-$	$1$	$2$
		$0$	$1$
	$-$		$0$
			$1$

	$1$	$4$	$0$
$3$	$4$	$2$	$1$	.	$0$
$-$	$3$
	$1$	$2$
$-$	$1$	$2$
		$0$	$1$
	$-$		$0$
			$1$	$0$

	$1$	$4$	$0$	.	$3$
$3$	$4$	$2$	$1$	.	$0$
$-$	$3$
	$1$	$2$
$-$	$1$	$2$
		$0$	$1$
	$-$		$0$
			$1$	$0$

	$1$	$4$	$0$	.	$3$
$3$	$4$	$2$	$1$	.	$0$
$-$	$3$
	$1$	$2$
$-$	$1$	$2$
		$0$	$1$
	$-$		$0$
			$1$	$0$
			$-$		$9$

	$1$	$4$	$0$	.	$3$
$3$	$4$	$2$	$1$	.	$0$
$-$	$3$
	$1$	$2$
$-$	$1$	$2$
		$0$	$1$
	$-$		$0$
			$1$	$0$
			$-$		$9$
					$1$

	$1$	$4$	$0$	.	$3$
$3$	$4$	$2$	$1$	.	$0$	$0$
$-$	$3$
	$1$	$2$
$-$	$1$	$2$
		$0$	$1$
	$-$		$0$
			$1$	$0$
			$-$		$9$
					$1$

	$1$	$4$	$0$	.	$3$
$3$	$4$	$2$	$1$	.	$0$	$0$
$-$	$3$
	$1$	$2$
$-$	$1$	$2$
		$0$	$1$
	$-$		$0$
			$1$	$0$
			$-$		$9$
					$1$	$0$

	$1$	$4$	$0$	.	$3$	$3$
$3$	$4$	$2$	$1$	.	$0$	$0$
$-$	$3$
	$1$	$2$
$-$	$1$	$2$
		$0$	$1$
	$-$		$0$
			$1$	$0$
			$-$		$9$
					$1$	$0$

	$1$	$4$	$0$	.	$3$	$3$
$3$	$4$	$2$	$1$	.	$0$	$0$
$-$	$3$
	$1$	$2$
$-$	$1$	$2$
		$0$	$1$
	$-$		$0$
			$1$	$0$
			$-$		$9$
					$1$	$0$
				$-$		$9$

	$1$	$4$	$0$	.	$3$	$3$
$3$	$4$	$2$	$1$	.	$0$	$0$
$-$	$3$
	$1$	$2$
$-$	$1$	$2$
		$0$	$1$
	$-$		$0$
			$1$	$0$
			$-$		$9$
					$1$	$0$
				$-$		$9$
						$1$