Question

answer the question correctly to continue: which of these is a rational number but not an integer? -4.2 -2 0 3

Explanation:

Step1: Recall definitions

A rational number is a number that can be written as $\frac{p}{q}$ where $p,q$ are integers and $q
eq0$. An integer is a whole - number (positive, negative, or zero).

Step2: Analyze each option

• $-4.2=\frac{- 42}{10}=\frac{-21}{5}$, it is a rational number and not an integer.
• $-2$ is an integer and also a rational number ($-2=\frac{-2}{1}$).
• $0$ is an integer and also a rational number ($0 = \frac{0}{1}$).
• $3$ is an integer and also a rational number ($3=\frac{3}{1}$).

Answer:

$-4.2$