An example that organizes and classifies numbers into their appropriate subsets within the Real Number system is shown below.

Example 1

In the following chart, the appropriate number system(s) that each value belongs to has been checked.

Number Natural Whole Integer Rational Irrational Real
0
−890
−0.783
4.99999...
 \( \frac{0.4}{0.23} \)
      
 
82
 \( \frac{3}{17} \)