Question

A number of the form $\frac{p}{q}$ is said to be a rational number if ____________________.

• A. p and q are integers
• B. p and q are integers and $q\ne 0$
• C. p and q are integers and $p\ne 0$
• D. p and q are integers and $p\ne 0,q\ne 0$

Answer 1

The correct option is B

p and q are integers and $q\ne 0$

A number which can be expressed as $\frac{p}{q}$, where p and q are integers and $q\ne 0$ is a rational number.
Example: $\frac{2}{5}$ and $\frac{7}{3}$