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The reciprocal of a fraction is obtained by interchanging the numerator and the denominator, i.e. by inverting the fraction.

Example 7

Find the reciprocal of 20.

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Q: What is a reciprcal?
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What is the reciprcal of 0.6?

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What is the reciprcal of 9?

The reciprocal of 9 is one ninth (1/9).


What does reciprcal mean?

In mathematics to form the reciprocal of a quantity is to divide one by that quantity:The reciprocal of 2 is 1/2.The reciprocal of a-b is 1/(a-b).


What is a reciprcal to a fraction?

The reciprocal of a fraction is whatever can be multiplied by the original fraction so that the product is one. In practical terms, flip the fraction upside down. The reciprocal of 3/4 is 4/3.


What do you have to do to change a fraction to its reciprcal?

Just switch the top (numerator) with the bottom (denominator), turning the fraction upside down. e.g. (17/43)-1 = 43/17 or, more generally, (a/b)-1 = b/a