Answer:
[tex]4 * \frac{b}{a}[/tex]
Step-by-step explanation:
[tex]4 / \frac{a}{b}[/tex] =
[tex]\frac{4}{1} /\frac{a}{b}[/tex] =
[tex]\frac{4}{1} *\frac{b}{a}[/tex] =
[tex]4*\frac{b}{a}[/tex]
