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## Algebra, General Math and Science

### Kendall Park, NJ (08824)

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# Corey's Responses in WyzAnt Answers

#### why cant you divide by zero, wont it just be zero?

my teacher asked this but i dont know why you cant divide by zero

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You cannot divide by zero because zero has no multiplicative inverse:  No real number multiplied by zero equals any number other than zero.  This is clearer when you realize that any number multiplied by zero must be zero; therefore, you cannot divide by zero (it is undefined).

#### how to change 1/2 into a whole number

in my math class my teacher said that 1/3 was equal to 3, my problem ask numbers to be multiplied by a fraction, 1/2 but i need to know how to change it to a whole number

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Asked by Courtney from Greenville, SC
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You can make any fraction into a whole number by multiplying the fraction by the same number in the denominator.  For example, if you multiply 1/3 by 3, you get 1; if you multiply 1/2 by 2, you get 1; if you multiply 2/3 by 3, you would get 2.

I think, though, that what you probably want to know is how to convert a fraction into a decimal.  If that is the case, I think the easiest way to do it is to just divide the numerator by the denominator.  For example 1/2 is the same as 1 divided by 2, which is 0.5; and 1/3 is 1 divided by 3, which is 0.3333333 (the 3 repeats indefinitely).

0 . 3 3 3

____________

3  ) 1 . 0 0 0

9

____

1 0

9

____

1 0

9

... (etc.)

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## Background Check Status for Corey B.

Corey B. passed a background check on 2/24/2012. You may run an updated background check on Corey once you send an email.