Pre-Algebra Examples

$\frac{77}{3.8}$

Step 1

Set up the division problem in long division format.

$3$

$8$

$7$

Step 2

Move the decimal the same amount of places in both numbers until the divisor is a whole number.

$3$

$8$

$7$

$0$

Step 3

Divide $77$ by $38$ . Place this digit in the quotient on top of the division symbol.

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

Step 4

Multiply the newest quotient digit $(2)$ by the divisor $38$ .

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

Step 5

Subtract $76$ from $77$ .

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

Step 6

Bring down the next number of the dividend.

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

Step 7

Divide $10$ by $38$ . Place this digit in the quotient on top of the division symbol.

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

Step 8

Multiply the newest quotient digit $(0)$ by the divisor $38$ .

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

Step 9

Subtract $0$ from $10$ .

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

Step 10

Add a $0$ to the end of the dividend.

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

Step 11

Bring down the next number of the dividend.

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

Step 12

Divide $100$ by $38$ . Place this digit in the quotient on top of the division symbol.

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

Step 13

Multiply the newest quotient digit $(2)$ by the divisor $38$ .

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

Step 14

Subtract $76$ from $100$ .

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

Step 15

Add a $0$ to the end of the dividend.

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

Step 16

Bring down the next number of the dividend.

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

Step 17

Divide $240$ by $38$ . Place this digit in the quotient on top of the division symbol.

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

Step 18

Multiply the newest quotient digit $(6)$ by the divisor $38$ .

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

Step 19

Subtract $228$ from $240$ .

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

Step 20

Add a $0$ to the end of the dividend.

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

Step 21

Bring down the next number of the dividend.

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

Step 22

Divide $120$ by $38$ . Place this digit in the quotient on top of the division symbol.

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

Step 23

Multiply the newest quotient digit $(3)$ by the divisor $38$ .

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

Step 24

Subtract $114$ from $120$ .

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

Step 25

The result of division of $\frac{77}{3.8}$ is $20.263 \dots$ .

$20.263 \dots$

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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