We are given the following operation:
[tex]\frac{\frac{9}{4}}{\frac{5}{8}}[/tex]To solve this we will use the following property of rationals:
[tex]\frac{\frac{a}{b}}{\frac{c}{d}}=\frac{ad}{bc}[/tex]Applying the property we get:
[tex]\frac{\frac{9}{4}}{\frac{5}{8}}=\frac{(9)(8)}{(5)(4)}[/tex]Solving the operations:
[tex]\frac{(9)(8)}{(5)(4)}=\frac{72}{20}[/tex]We can simplify by dividing both sides by 4:
[tex]\frac{\frac{72}{4}}{\frac{20}{4}}=\frac{18}{5}[/tex]Since we can't simplify any further this is the final answer.