A

As you can see, a reciprocal of a fraction is just flipping the numerator and denominator. More facts about this type of fraction:

- Any Fraction with a numerator with a value of zero has no reciprocal.
Example: the value of fraction
^{0}/_{3}is zero. If we take the reciprocal^{3}/_{0}, we know a fraction with a denominator of zero is undefined.

- The product of a fraction and its reciprocal
is always one with exception of a denominator of zero.
Here is an example:
^{3}/_{5}×^{5}/_{3}=^{15}/_{15}= 1.

- The reciprocal of any Integer is
^{1}/_{Integer}with exception of the number zero. Let's use the number 10 as an example; the reciprocal is^{1}/_{10}.

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