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Why does the calculator do 20.5^2 = 1681/4 = 420.25? What is the 1681/4 part all about?

 Jun 7, 2015

Best Answer 

 #1
avatar+33654 
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1681/4 is just the number represented as an integer ratio.  Divide 1681 by 4 and you get 420.25.  The calculator here often gives both integer-ratio and decimal representations when it can.

 

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 Jun 7, 2015
 #1
avatar+33654 
+5
Best Answer

1681/4 is just the number represented as an integer ratio.  Divide 1681 by 4 and you get 420.25.  The calculator here often gives both integer-ratio and decimal representations when it can.

 

.

Alan Jun 7, 2015

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