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I tried it online but everyone says it is rational when it keeps repeating itself. Please help me out.

 Sep 15, 2017

Best Answer 

 #1
avatar+2446 
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37 is a rational number. 

 

In order to be classified as a rational number, a number must meet the following condition:

 

A number is rational if and only if you can represent that number with ab where a,bZ. 3/7 meets this rule; a=3 and b=7.

 

Another way to think about it is the following:

 

A number is rational if and only if its decimal expansion either terminates OR repeats indefinitely. 37=0.¯428571, which repeats indefinitely. This is a rational number. 

 Sep 15, 2017
 #1
avatar+2446 
+1
Best Answer

37 is a rational number. 

 

In order to be classified as a rational number, a number must meet the following condition:

 

A number is rational if and only if you can represent that number with ab where a,bZ. 3/7 meets this rule; a=3 and b=7.

 

Another way to think about it is the following:

 

A number is rational if and only if its decimal expansion either terminates OR repeats indefinitely. 37=0.¯428571, which repeats indefinitely. This is a rational number. 

TheXSquaredFactor Sep 15, 2017

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