Why is it that when you divide real numbers by zero the answer is undefined?
When a positive number is divided by a number less than 1, the
result is a number greater than the first number. Using
expressions, b/a > b if a < 1. As the value of 'a' approaches
zero, the result of the division grows bigger and bigger. When 'a'
reaches zero, b/a becomes a very large number, which is called
infinity. In calculators, the result of the division becomes
undefined because the number is beyond the range of numbers the
calculator can display. There are some calculators that can handle
infinity explicitly in calculations.