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A rational number is called unitary if its numerator is 1; that is, if it is in the form 1/n (n is a positive integer). In how many ways can 1/2 be written as the sum of two unitary rational numbers

 Oct 28, 2018

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 #1
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I can only think of 2 as follows:

1/3 + 1/6 = 1/2

1/4 + 1/4 =1/2

1/6 + 1/3 =1/2 - which is the same as the first.

 Oct 28, 2018
 #1
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+2
Best Answer

I can only think of 2 as follows:

1/3 + 1/6 = 1/2

1/4 + 1/4 =1/2

1/6 + 1/3 =1/2 - which is the same as the first.

Guest Oct 28, 2018

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