Pré-álgebra Exemplos

$\frac{77}{3.8}$

Etapa 1

Estabeleça o problema de divisão em formato de divisão longa.

$3$

$8$

$7$

Etapa 2

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

$3$

$8$

$7$

$0$

Etapa 3

Divida $77$ por $38$ . Coloque esse dígito no quociente no topo do símbolo de divisão.

			$2$
$3$	$8$	$7$	$7$	$0$

Etapa 4

Multiplique o dígito de quociente mais novo $(2)$ pelo divisor $38$ .

			$2$
$3$	$8$	$7$	$7$	$0$
	$-$	$7$	$6$

Etapa 5

Subtraia $76$ de $77$ .

			$2$
$3$	$8$	$7$	$7$	$0$
	$-$	$7$	$6$
			$1$

Etapa 6

Reduza o próximo número do dividendo.

			$2$
$3$	$8$	$7$	$7$	$0$
	$-$	$7$	$6$
			$1$	$0$

Etapa 7

Divida $10$ por $38$ . Coloque esse dígito no quociente no topo do símbolo de divisão.

			$2$	$0$
$3$	$8$	$7$	$7$	$0$
	$-$	$7$	$6$
			$1$	$0$

Etapa 8

Multiplique o dígito de quociente mais novo $(0)$ pelo divisor $38$ .

			$2$	$0$
$3$	$8$	$7$	$7$	$0$
	$-$	$7$	$6$
			$1$	$0$
		$-$		$0$

Etapa 9

Subtraia $0$ de $10$ .

			$2$	$0$
$3$	$8$	$7$	$7$	$0$
	$-$	$7$	$6$
			$1$	$0$
		$-$		$0$
			$1$	$0$

Etapa 10

Adicione $0$ ao final do dividendo.

			$2$	$0$
$3$	$8$	$7$	$7$	$0$	.	$0$
	$-$	$7$	$6$
			$1$	$0$
		$-$		$0$
			$1$	$0$

Etapa 11

Reduza o próximo número do dividendo.

			$2$	$0$
$3$	$8$	$7$	$7$	$0$	.	$0$
	$-$	$7$	$6$
			$1$	$0$
		$-$		$0$
			$1$	$0$	$0$

Etapa 12

Divida $100$ por $38$ . Coloque esse dígito no quociente no topo do símbolo de divisão.

			$2$	$0$	.	$2$
$3$	$8$	$7$	$7$	$0$	.	$0$
	$-$	$7$	$6$
			$1$	$0$
		$-$		$0$
			$1$	$0$	$0$

Etapa 13

Multiplique o dígito de quociente mais novo $(2)$ pelo divisor $38$ .

			$2$	$0$	.	$2$
$3$	$8$	$7$	$7$	$0$	.	$0$
	$-$	$7$	$6$
			$1$	$0$
		$-$		$0$
			$1$	$0$	$0$
			$-$		$7$	$6$

Etapa 14

Subtraia $76$ de $100$ .

			$2$	$0$	.	$2$
$3$	$8$	$7$	$7$	$0$	.	$0$
	$-$	$7$	$6$
			$1$	$0$
		$-$		$0$
			$1$	$0$	$0$
			$-$		$7$	$6$
					$2$	$4$

Etapa 15

Adicione $0$ ao final do dividendo.

			$2$	$0$	.	$2$
$3$	$8$	$7$	$7$	$0$	.	$0$	$0$
	$-$	$7$	$6$
			$1$	$0$
		$-$		$0$
			$1$	$0$	$0$
			$-$		$7$	$6$
					$2$	$4$

Etapa 16

Reduza o próximo número do dividendo.

			$2$	$0$	.	$2$
$3$	$8$	$7$	$7$	$0$	.	$0$	$0$
	$-$	$7$	$6$
			$1$	$0$
		$-$		$0$
			$1$	$0$	$0$
			$-$		$7$	$6$
					$2$	$4$	$0$

Etapa 17

Divida $240$ por $38$ . Coloque esse dígito no quociente no topo do símbolo de divisão.

			$2$	$0$	.	$2$	$6$
$3$	$8$	$7$	$7$	$0$	.	$0$	$0$
	$-$	$7$	$6$
			$1$	$0$
		$-$		$0$
			$1$	$0$	$0$
			$-$		$7$	$6$
					$2$	$4$	$0$

Etapa 18

Multiplique o dígito de quociente mais novo $(6)$ pelo divisor $38$ .

			$2$	$0$	.	$2$	$6$
$3$	$8$	$7$	$7$	$0$	.	$0$	$0$
	$-$	$7$	$6$
			$1$	$0$
		$-$		$0$
			$1$	$0$	$0$
			$-$		$7$	$6$
					$2$	$4$	$0$
				$-$	$2$	$2$	$8$

Etapa 19

Subtraia $228$ de $240$ .

			$2$	$0$	.	$2$	$6$
$3$	$8$	$7$	$7$	$0$	.	$0$	$0$
	$-$	$7$	$6$
			$1$	$0$
		$-$		$0$
			$1$	$0$	$0$
			$-$		$7$	$6$
					$2$	$4$	$0$
				$-$	$2$	$2$	$8$
						$1$	$2$

Etapa 20

Adicione $0$ ao final do dividendo.

			$2$	$0$	.	$2$	$6$
$3$	$8$	$7$	$7$	$0$	.	$0$	$0$	$0$
	$-$	$7$	$6$
			$1$	$0$
		$-$		$0$
			$1$	$0$	$0$
			$-$		$7$	$6$
					$2$	$4$	$0$
				$-$	$2$	$2$	$8$
						$1$	$2$

Etapa 21

Reduza o próximo número do dividendo.

			$2$	$0$	.	$2$	$6$
$3$	$8$	$7$	$7$	$0$	.	$0$	$0$	$0$
	$-$	$7$	$6$
			$1$	$0$
		$-$		$0$
			$1$	$0$	$0$
			$-$		$7$	$6$
					$2$	$4$	$0$
				$-$	$2$	$2$	$8$
						$1$	$2$	$0$

Etapa 22

Divida $120$ por $38$ . Coloque esse dígito no quociente no topo do símbolo de divisão.

			$2$	$0$	.	$2$	$6$	$3$
$3$	$8$	$7$	$7$	$0$	.	$0$	$0$	$0$
	$-$	$7$	$6$
			$1$	$0$
		$-$		$0$
			$1$	$0$	$0$
			$-$		$7$	$6$
					$2$	$4$	$0$
				$-$	$2$	$2$	$8$
						$1$	$2$	$0$

Etapa 23

Multiplique o dígito de quociente mais novo $(3)$ pelo divisor $38$ .

			$2$	$0$	.	$2$	$6$	$3$
$3$	$8$	$7$	$7$	$0$	.	$0$	$0$	$0$
	$-$	$7$	$6$
			$1$	$0$
		$-$		$0$
			$1$	$0$	$0$
			$-$		$7$	$6$
					$2$	$4$	$0$
				$-$	$2$	$2$	$8$
						$1$	$2$	$0$
					$-$	$1$	$1$	$4$

Etapa 24

Subtraia $114$ de $120$ .

			$2$	$0$	.	$2$	$6$	$3$
$3$	$8$	$7$	$7$	$0$	.	$0$	$0$	$0$
	$-$	$7$	$6$
			$1$	$0$
		$-$		$0$
			$1$	$0$	$0$
			$-$		$7$	$6$
					$2$	$4$	$0$
				$-$	$2$	$2$	$8$
						$1$	$2$	$0$
					$-$	$1$	$1$	$4$
								$6$

Etapa 25

O resultado da divisão de $\frac{77}{3.8}$ é $20.263 \dots$ .

$20.263 \dots$

			$2$	$0$	.	$2$
$3$	$8$	$7$	$7$	$0$	.	$0$
	$-$	$7$	$6$
			$1$	$0$
		$-$		$0$
			$1$	$0$	$0$
			$-$		$7$	$6$

			$2$	$0$	.	$2$
$3$	$8$	$7$	$7$	$0$	.	$0$
	$-$	$7$	$6$
			$1$	$0$
		$-$		$0$
			$1$	$0$	$0$
			$-$		$7$	$6$
					$2$	$4$

			$2$	$0$	.	$2$
$3$	$8$	$7$	$7$	$0$	.	$0$	$0$
	$-$	$7$	$6$
			$1$	$0$
		$-$		$0$
			$1$	$0$	$0$
			$-$		$7$	$6$
					$2$	$4$

			$2$	$0$	.	$2$
$3$	$8$	$7$	$7$	$0$	.	$0$	$0$
	$-$	$7$	$6$
			$1$	$0$
		$-$		$0$
			$1$	$0$	$0$
			$-$		$7$	$6$
					$2$	$4$	$0$

			$2$	$0$	.	$2$	$6$
$3$	$8$	$7$	$7$	$0$	.	$0$	$0$
	$-$	$7$	$6$
			$1$	$0$
		$-$		$0$
			$1$	$0$	$0$
			$-$		$7$	$6$
					$2$	$4$	$0$

			$2$	$0$	.	$2$	$6$
$3$	$8$	$7$	$7$	$0$	.	$0$	$0$
	$-$	$7$	$6$
			$1$	$0$
		$-$		$0$
			$1$	$0$	$0$
			$-$		$7$	$6$
					$2$	$4$	$0$
				$-$	$2$	$2$	$8$

			$2$	$0$	.	$2$	$6$
$3$	$8$	$7$	$7$	$0$	.	$0$	$0$
	$-$	$7$	$6$
			$1$	$0$
		$-$		$0$
			$1$	$0$	$0$
			$-$		$7$	$6$
					$2$	$4$	$0$
				$-$	$2$	$2$	$8$
						$1$	$2$

			$2$	$0$	.	$2$	$6$
$3$	$8$	$7$	$7$	$0$	.	$0$	$0$	$0$
	$-$	$7$	$6$
			$1$	$0$
		$-$		$0$
			$1$	$0$	$0$
			$-$		$7$	$6$
					$2$	$4$	$0$
				$-$	$2$	$2$	$8$
						$1$	$2$

			$2$	$0$	.	$2$	$6$
$3$	$8$	$7$	$7$	$0$	.	$0$	$0$	$0$
	$-$	$7$	$6$
			$1$	$0$
		$-$		$0$
			$1$	$0$	$0$
			$-$		$7$	$6$
					$2$	$4$	$0$
				$-$	$2$	$2$	$8$
						$1$	$2$	$0$

			$2$	$0$	.	$2$	$6$	$3$
$3$	$8$	$7$	$7$	$0$	.	$0$	$0$	$0$
	$-$	$7$	$6$
			$1$	$0$
		$-$		$0$
			$1$	$0$	$0$
			$-$		$7$	$6$
					$2$	$4$	$0$
				$-$	$2$	$2$	$8$
						$1$	$2$	$0$

			$2$	$0$	.	$2$
$3$	$8$	$7$	$7$	$0$	.	$0$
	$-$	$7$	$6$
			$1$	$0$
		$-$		$0$
			$1$	$0$	$0$
			$-$		$7$	$6$

			$2$	$0$	.	$2$
$3$	$8$	$7$	$7$	$0$	.	$0$
	$-$	$7$	$6$
			$1$	$0$
		$-$		$0$
			$1$	$0$	$0$
			$-$		$7$	$6$
					$2$	$4$

			$2$	$0$	.	$2$
$3$	$8$	$7$	$7$	$0$	.	$0$	$0$
	$-$	$7$	$6$
			$1$	$0$
		$-$		$0$
			$1$	$0$	$0$
			$-$		$7$	$6$
					$2$	$4$

			$2$	$0$	.	$2$
$3$	$8$	$7$	$7$	$0$	.	$0$	$0$
	$-$	$7$	$6$
			$1$	$0$
		$-$		$0$
			$1$	$0$	$0$
			$-$		$7$	$6$
					$2$	$4$	$0$

			$2$	$0$	.	$2$	$6$
$3$	$8$	$7$	$7$	$0$	.	$0$	$0$
	$-$	$7$	$6$
			$1$	$0$
		$-$		$0$
			$1$	$0$	$0$
			$-$		$7$	$6$
					$2$	$4$	$0$

			$2$	$0$	.	$2$	$6$
$3$	$8$	$7$	$7$	$0$	.	$0$	$0$
	$-$	$7$	$6$
			$1$	$0$
		$-$		$0$
			$1$	$0$	$0$
			$-$		$7$	$6$
					$2$	$4$	$0$
				$-$	$2$	$2$	$8$

			$2$	$0$	.	$2$	$6$
$3$	$8$	$7$	$7$	$0$	.	$0$	$0$
	$-$	$7$	$6$
			$1$	$0$
		$-$		$0$
			$1$	$0$	$0$
			$-$		$7$	$6$
					$2$	$4$	$0$
				$-$	$2$	$2$	$8$
						$1$	$2$

			$2$	$0$	.	$2$	$6$
$3$	$8$	$7$	$7$	$0$	.	$0$	$0$	$0$
	$-$	$7$	$6$
			$1$	$0$
		$-$		$0$
			$1$	$0$	$0$
			$-$		$7$	$6$
					$2$	$4$	$0$
				$-$	$2$	$2$	$8$
						$1$	$2$

			$2$	$0$	.	$2$	$6$
$3$	$8$	$7$	$7$	$0$	.	$0$	$0$	$0$
	$-$	$7$	$6$
			$1$	$0$
		$-$		$0$
			$1$	$0$	$0$
			$-$		$7$	$6$
					$2$	$4$	$0$
				$-$	$2$	$2$	$8$
						$1$	$2$	$0$

			$2$	$0$	.	$2$	$6$	$3$
$3$	$8$	$7$	$7$	$0$	.	$0$	$0$	$0$
	$-$	$7$	$6$
			$1$	$0$
		$-$		$0$
			$1$	$0$	$0$
			$-$		$7$	$6$
					$2$	$4$	$0$
				$-$	$2$	$2$	$8$
						$1$	$2$	$0$

			$2$	$0$	.	$2$
$3$	$8$	$7$	$7$	$0$	.	$0$
	$-$	$7$	$6$
			$1$	$0$
		$-$		$0$
			$1$	$0$	$0$
			$-$		$7$	$6$

			$2$	$0$	.	$2$
$3$	$8$	$7$	$7$	$0$	.	$0$
	$-$	$7$	$6$
			$1$	$0$
		$-$		$0$
			$1$	$0$	$0$
			$-$		$7$	$6$
					$2$	$4$

			$2$	$0$	.	$2$
$3$	$8$	$7$	$7$	$0$	.	$0$	$0$
	$-$	$7$	$6$
			$1$	$0$
		$-$		$0$
			$1$	$0$	$0$
			$-$		$7$	$6$
					$2$	$4$

			$2$	$0$	.	$2$
$3$	$8$	$7$	$7$	$0$	.	$0$	$0$
	$-$	$7$	$6$
			$1$	$0$
		$-$		$0$
			$1$	$0$	$0$
			$-$		$7$	$6$
					$2$	$4$	$0$

			$2$	$0$	.	$2$	$6$
$3$	$8$	$7$	$7$	$0$	.	$0$	$0$
	$-$	$7$	$6$
			$1$	$0$
		$-$		$0$
			$1$	$0$	$0$
			$-$		$7$	$6$
					$2$	$4$	$0$

			$2$	$0$	.	$2$	$6$
$3$	$8$	$7$	$7$	$0$	.	$0$	$0$
	$-$	$7$	$6$
			$1$	$0$
		$-$		$0$
			$1$	$0$	$0$
			$-$		$7$	$6$
					$2$	$4$	$0$
				$-$	$2$	$2$	$8$

			$2$	$0$	.	$2$	$6$
$3$	$8$	$7$	$7$	$0$	.	$0$	$0$
	$-$	$7$	$6$
			$1$	$0$
		$-$		$0$
			$1$	$0$	$0$
			$-$		$7$	$6$
					$2$	$4$	$0$
				$-$	$2$	$2$	$8$
						$1$	$2$

			$2$	$0$	.	$2$	$6$
$3$	$8$	$7$	$7$	$0$	.	$0$	$0$	$0$
	$-$	$7$	$6$
			$1$	$0$
		$-$		$0$
			$1$	$0$	$0$
			$-$		$7$	$6$
					$2$	$4$	$0$
				$-$	$2$	$2$	$8$
						$1$	$2$

			$2$	$0$	.	$2$	$6$
$3$	$8$	$7$	$7$	$0$	.	$0$	$0$	$0$
	$-$	$7$	$6$
			$1$	$0$
		$-$		$0$
			$1$	$0$	$0$
			$-$		$7$	$6$
					$2$	$4$	$0$
				$-$	$2$	$2$	$8$
						$1$	$2$	$0$

			$2$	$0$	.	$2$	$6$	$3$
$3$	$8$	$7$	$7$	$0$	.	$0$	$0$	$0$
	$-$	$7$	$6$
			$1$	$0$
		$-$		$0$
			$1$	$0$	$0$
			$-$		$7$	$6$
					$2$	$4$	$0$
				$-$	$2$	$2$	$8$
						$1$	$2$	$0$