If $\frac{p}{q}$ is a rational number, then $q$ cannot be .

Two rational numbers with different numerators are equal if their numerators are in the same _____ to their denominators. (Ratio/Proportion)

The quotient of two integers is always an integer.

Every integer is a rational number

Every rational number is an integer.

Every fraction is a rational number.

Every rational number is a fraction. 

If $\frac{a}{b}$ is a rational number and $m$ is any integer, then $\frac{a}{b}=\frac{a\times m}{b\times m}$.