# Ex.1.1 Q1 Number System Solution - NCERT Maths Class 9

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## Question

Is zero a rational number? Can you write it in the form \begin{align}\frac{p}{q}\end{align} where \begin{align}p \end{align} and \begin{align}q \end{align} are integers and \begin{align}q \ne 0\end{align}?

Video Solution
Number Systems
Ex 1.1 | Question 1

## Text Solution

Steps:

Yes, zero is a rational number.

Zero can be written as:

\begin{align}\frac{0}{{{\rm{Any}}\,{\rm{non - zero}}\,{\rm{integer}}}}\end{align}

\begin{align}\text{Example}:\frac{0}{1} = \frac{0}{{ - 2}}\,\,\end{align}

Which is in the form of \begin{align}\frac{p}{q}\end{align}, where \begin{align}p \end{align} and \begin{align}q \end{align} are integers and \begin{align}q \ne 0\end{align}.

Video Solution
Number Systems
Ex 1.1 | Question 1

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