7th Grade Section
WME@Kimpton Middle

Fraction Subtraction vs. Addition

Think FractionsLet's see how easy it is to think subtraction in terms of addition and vice versa.

  1. Look at this subtraction

      4  
    6
    		  −  
      1  
    6
    		  =  
            
    6

    And this addition

      4  
    6
    		  =  
        
    6
    		  +  
      1  
    6     

    Do these two questions have the same answer?

    • What is 4/6 - 1/6?
    • Adding what to 1/6 gets you 4/6?