Answer: B. [tex]\dfrac1{45}\times5=\dfrac19[/tex]
Step-by-step explanation:
We know that,
[tex]\dfrac{a}{b}\div\dfrac{c}{d}=\dfrac{a}{b}\times\dfrac{d}{c}[/tex]
Then, [tex]\dfrac19\div 5[/tex] [tex]=\dfrac19\times\dfrac15[/tex]
[tex]=\dfrac1{45}[/tex]
i.e.
[tex]\dfrac19\div 5=\dfrac{1}{45}\\\\\Rightarrow\ \dfrac1{45}\times5=\dfrac19 \ \ \ \text{[Multiply 5 on both sides]}[/tex]
Therefore, the multiplication equation is related to the division equation [tex]\dfrac1{45}\times5=\dfrac19[/tex]
Hence, the correct option is B. [tex]\dfrac1{45}\times5=\dfrac19[/tex]