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• Math and Arithmetic
• Algebra
• Numbers

# Why is it that when you divide real numbers by zero the answer is undefined?

###### Answered 2007-08-28 20:23:53

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.

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