how that each number is a rational number by writing it as a
quotient of two integers.
How do I do that with the number 21
63
––— is just one of many.
3
A rational number is a number that can be written in the form ab where a is any integer and b is a counting number.
Guest provided one way to represent 21, but 211 is the simplest example of them all.
+22 
