Recall that division by zero is undefined. That is, we cannot have zero in the denominator of a fraction. Therefore, while we could write 0 as 0 / 1, we could not "flip" this fraction since that would cause division by zero. Zero has no reciprocal.
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The reciprocal of 0 is undefined. 0 is a whole number and as a fraction is 0/1
the reciprocal of a fraction is the flip of the fraction. So the reciprocal of 0/1 is 1/0.
This is called division of zero and the answer is undefined.
