The Golden Ratio (phi) There are several well known “irrational numbers”, which are numbers that cannot be expressed as a ratio between two numbers and it cannot be written as a simple fraction because there is not a finite number of numbers when written as a decimal. When irrational numbers are written as decimals the decimal would go on forever without repeating. An irrational number you are probably very familiar with is pi or Π which is equal to 3.14159265359 …. it is the irrational number that helps us understand everything that is circular. Another irrational number you may have…