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 Everyday Examples
 Division by Zero:  Division by zero is not allowed. See the discussion below for reasons why.

An impossible event is sometimes described in equations that involve division by zero. For example, the length of a rectangular field can be determined by dividing its area by its width. As an equation, this is written as l = a/w. If the width of the field, w, is equal to zero, then it would be impossible to determine the length of the field. In fact, without a width, it would be impossible for the field to have any area since area is based on having two dimensions.