|   | What do you get?  ... Mmmh ... Four small pieces minus a large piece? .... Mmmh ... | 
|   | Here it is easy. The result is: "two pieces"! | 
|   | These fractions don't have a common denominator, so to subtract them, we will first have to find a common denominator. | 
|   | Here you can see, how we have done this.. | 
|   | This is the result you get. | 
|   | We can now subtract the numerators. | 
|   | |
|   | 
