Step 1 :Check if the number can be expressed as a fraction \(\frac{a}{b}\) where a and b are integers and b ≠ 0:
Step 2 :\(\pi\) and \(\sqrt{2}\) are known to be irrational numbers
Step 3 :\( 4.567 \ldots \) indicates a non-terminating decimal
Step 4 :23 can be expressed as \(\frac{23}{1}\), which is a rational number