Is zero a rational number? Can you write it in the form $\frac{p}{q},$ where $p$ and $q$ are integers and $q0?$ Find six rational numbers between $3$ and $4.$ Find five rational numbers between $\frac{3}{5}$ and $\frac{4}{5}.$ State whether the following statements are true or false. Give reasons for your answers. $($i$)$ Every natural number is a whole number. $($ii$)$ Every integer is a whole number. $($iii$)$ Every rational number is a whole number.