Question

is the following number rational or irrational?
\\(\dfrac{0.4}{0.8}\\)
choose 1 answer:
a rational
b irrational

Explanation:

Step1: Simplify the fraction

$\frac{0.4}{0.8} = \frac{4}{8} = \frac{1}{2}$

Step2: Check rational definition

A rational number is any number that can be written as $\frac{p}{q}$, where $p$ and $q$ are integers and $q
eq 0$. $\frac{1}{2}$ fits this definition, with $p=1$ and $q=2$.

Answer:

A. Rational