We need to compute the following division:
[tex]\frac{\frac{1}{2}}{\frac{1}{9}}[/tex]By using the sandwhich rule,
we get
[tex]\frac{\frac{1}{2}}{\frac{1}{9}}=\frac{9}{2}[/tex]This result can be expressed in mixed form as:
[tex]\frac{9}{2}=4\frac{1}{2}[/tex]or as decimal form
[tex]\frac{9}{2}=4.5[/tex]Therefore, the answer is:
[tex]\begin{gathered} \text{ Fraction form:}\frac{9}{2} \\ Mixed\text{ form: 4}\frac{1}{2} \\ Decimal\text{ form: 4.5} \end{gathered}[/tex]