Rational Number...

The property under multiplication used is:
$$-\dfrac{13}{17}\times\dfrac{-2}{7}=\dfrac{-2}{7}\times \dfrac{-13}{17}$$

Two rational numbers between $$\dfrac{2}{3}$$ and $$\dfrac{5}{3}$$ are :

The property allows you to compute $$\displaystyle \frac{1}{3}\times \left ( 6 \times\frac{4}{3} \right )as \left ( \frac{1}{3} \times 6\right )\times \frac{4}{3}$$ is Associativity.

Between any two rational numbers, 

The property under multiplication used in each of the following is the 
$$\dfrac{-19}{29}\times\dfrac{29}{-19}=1$$

If D be subset of `the set of all rational numbers, which can be expressed as terminating decimals, then D is closed under the binary operations of

Find the nine rational numbers between $$0$$ and $$1$$.

Two rational numbers between $$\dfrac{1}{5}$$ and $$\dfrac{4}{5}$$ are :

Find the five rational numbers between  $$\displaystyle \frac{1}{2}$$ and $$\displaystyle \frac{3}{2}$$

A rational number between $$\displaystyle \frac{1}{4}$$ and $$\displaystyle \frac{1}{3}$$ is