Other contributors have said "What is the definition for a proper facter?" is the same question as "What is the definition of proper fraction?" If you believe that these are not asking the same thing and should be answered differently, click here
its simple! Here is an example: 4/8 divided by 1/2; you flip the 1/2 over so it becomes 4/8 divided by 2/1. Instead of dividing, you then multiply across. The answer is...8/8!
An improper fraction is what I call a 'top-heavy' fraction. If the fraction is 38/6, the top is too big and you have to fix it so that it's not all top heavy. The way you do that, is that the big...