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Q: The reciprocal of a number plus the reciprocal of three times the number equals one third?

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The reciprocal of 3/10 is 10/3 or 3 1/3 (that is, three and one third).

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Reciprocal of 3/7 is 7/3, when you multiply a number with its reciprocal you will get the value 1.

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1/3, or one third.

The reciprocal of 3/10 is 10/3 or 3 1/3 (that is, three and one third).

To find how many third cups in a half cup, you would divide one third into one half. To do this, you will have to multiply one half with the reciprocal of one third, which is three over one (3). This equals three halves, which equals one and one half third cups in a half cup.

Let's call the number x, then the reciprocal is 1/x 3/x is three times the reciprocal and that equals two. So 3/x=2 or3=2x and means x=3/2 Check it x=3/2 reciprocal is 2/3 and 3x 2/3=2.

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The reciprocal of 7 1/3 is 3/22 or three twenty-secondths.