Pre-Algebra Examples

$25.2 ft \div 2.8 ft$

Step 1

Combine fractions.

$\frac{25.2}{2.8} {ft}^{2}$

Step 2

Divide $25.2$ by $2.8$ .

$9 {ft}^{2}$

Step 3

Convert ${ft}^{2}$ to ${in}^{2}$ .

$9 {ft}^{2} \times \frac{12^{2} {in}^{2}}{1 {ft}^{2}}$

Step 4

Cancel the common units and simplify.

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Step 4.1

Cross cancel units.

$\frac{9 {ft}^{2}}{1} \times \frac{12^{2} {in}^{2}}{1 {ft}^{2}}$

Step 4.2

Remove the canceled units.

$\frac{9}{1} \times \frac{12^{2} {in}^{2}}{1}$

Step 4.3

Combine fractions.

$9 \cdot 12^{2} {in}^{2}$

Step 4.4

Raise $12$ to the power of $2$ .

$9 \cdot 144 {in}^{2}$

Step 4.5

Multiply $9$ by $144$ .

$1296 {in}^{2}$