7th Grade Section
WME@Kimpton Middle

Fractions and Chocolate Bars II

Chocolate barsLet's look at larger chocolate bars.

  1. The pieces of Joyce's chocolate bar are in 6 rows and 7 columns for a total of 42 pieces (count them if you will).

     

  2. Observe the number of pieces in each row and each column.
    Each column is how many 7ths of the whole bar? Answer:   

    This shows that

      1  
    7
    		  =  
            
    42

  3. What about

      18  
    42
    		  =  
            
    7

  4. Each row is how many 6ths of the whole bar? Answer:   

    Hence,

      1  
    6
    		  =  
            
    42

  5. And we have

      1  
    3
    		  =  
            
    42