What Does 21/2 Represent in Mathematics?

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The expression 21/2 represents 20.5, not 21. There was initial confusion about its meaning, with one participant mistakenly considering it as 21. The correct interpretation is that 21/2 can also be understood as 2^0.5, which equals the square root of 2. The discussion highlights the importance of clarity in mathematical expressions. Overall, the consensus confirms that 21/2 equals 20.5.
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Hi,

This is no doubt a real simple question

does 21/2 mean 20.5 or 21

Thanks in advance

Mike
 
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mikedamike said:
Hi,

This is no doubt a real simple question

does 21/2 mean 20.5 or 21

Thanks in advance

Mike

It means 20.5 or √2

Why would it mean 21 ?
 
Sorry, i was 99.99% sure it was 2^0.5 but it was one of those questions you ask when your brain gets wound up from learning a new equation and then you take a step back and its blindingly obvious. Thanks for reply though.
 
1 is NOT the same as 1/2!
 

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