Set up the division problem.

$\frac{48}{9} \ \div\ \frac{6}{1}$

Use skip-dot-flip.

$\frac{48}{9} \cdot \frac{1}{6}$

Cross-cancel as needed.

$\frac{\overset{8}{\cancel{48}}}{9} \cdot \frac{1}{\underset{1}{\cancel{6}}}$

Multiply the numerators and then multiply the denominators.

This answer is already in simplest form.

$\frac{8}{9} \cdot \frac{1}{1} = \frac{8}{9}$

Set up the division problem.

$\frac{9}{4} \ \div\ \frac{3}{2}$

Use skip-dot-flip.

$\frac{9}{4} \cdot \frac{2}{3}$

Cross-cancel as needed.

$\frac{\overset{3}{\cancel{9}}}{\underset{2}{\cancel{4}}} \cdot \frac{\overset{1}{\cancel{2}}}{\underset{1}{\cancel{3}}}$

Multiply the numerators and then multiply the denominators.

This answer is already in simplest form.

$\frac{3}{2} \cdot \frac{1}{1} = \frac{3}{2}$

To solve this problem, you will need to divide the total width of the fence by the width of each plank.

$\frac{10}{1} \ \div\ \frac{5}{4}$

Use skip-dot-flip.

$\frac{10}{1} \cdot \frac{4}{5}$

Cross-cancel as needed.

$\frac{\overset{2}{\cancel{10}}}{1} \cdot \frac{4}{\underset{1}{\cancel{5}}}$

Multiply the numerators and then multiply the denominators.

$\frac{2}{1} \cdot \frac{4}{1} = \frac{8}{1}$

Make sure that your answer is in simplest form.

$\frac{8}{1} = 8$