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Working with Parentheses, Brackets and Fractions
Parentheses, brackets and fractions are used to tell the order in which calculations should be performed. Study these examples:

 

 

 
All over the world the same rules for math are used. That way everybody gets the same answer!

Simplify each expression. Remember to do the operations within the parentheses and brackets first. Multiply or divide in a left-to-right order second and do addition or subtraction last.

 
 

 

 
 

 

 
 

 

 

 

 
 

 
To simplify expressions written as a fraction, first solve the expression above the bar, then the expression below the bar. If possible divide the expression above the bar by the expression below the bar.

 
 

 

 
 

 

 
 

 

 

 

 
 

 

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