Division of rational numbers is associative

As per the associative property: 

If A, B and C are rational numbers then the rule for the associative property of addition is: $\mathrm{A}+(\mathrm{B}+\mathrm{C})=(\mathrm{A}+\mathrm{B})+\mathrm{C}$ and the rule for the associative property of multiplication is: $\mathrm{A}\times (\mathrm{B}\times \mathrm{C})=(\mathrm{A}\times \mathrm{B})\times \mathrm{C}$

The associative property does not apply to subtraction and division.

For example: $\mathrm{A}÷(\mathrm{B}÷\mathrm{C})\ne (\mathrm{A}÷\mathrm{B})÷\mathrm{C}$

Let us consider three whole numbers A= 10, B=20 and C=5.

Now, 

$10÷\left(20÷5\right)=10÷4=2.5$

and $\left(10÷20\right)÷5=0.5÷5=0.1$

Hence, the associative property does not apply to subtraction and division. So, the given statement is false.