Posted by **Jon** on Saturday, March 12, 2011 at 5:06pm.

How would you writ the set of all recipricols of the natural numbers? I think it's (1/1 (I dont know if 1/1 is considered part of it) 1/2,1/3, 1/4, 1/5...) Is this correct? thanks

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**Ms. Sue**, Saturday, March 12, 2011 at 5:08pm
A reciprocal is the fraction turned upside down. A fraction multiplied by its reciprocal equals 1/1 or 1.

1/2 = 2/1 = 2/2

http://www.aaamath.com/fra-recip.htm

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**Ms. Sue**, Saturday, March 12, 2011 at 5:09pm
The reciprocal of 1/2 = 2/1

1/2 * 2/1 = 2/2

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**Jon**, Saturday, March 12, 2011 at 5:18pm
Alright so how would you write that as a set like the one i mentioned above. Like the set of natural numbers is (1,2,3,4,5,6...), so would the set of all recipricols of natural numbers be (1/1, 1/2, 1/3...)

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**Damon**, Saturday, March 12, 2011 at 6:31pm
Seems right to me.

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**Jon**, Saturday, March 12, 2011 at 6:48pm
Alright thanks

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**Anonymous**, Sunday, March 13, 2011 at 4:02am
the area of a circle with a diametere

of 240 is

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