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How is the value of pi expressed as a fraction?

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The mathematical constant π is an irrational value (i.e. cannot be expressed as a division of two integers) However, the constant itself comes from the division of the circunference of a circle by its diameter. read more

If you think of a fraction as just a ratio of any two numbers, then the exact value of pi is expressed as the ratio of a circle’s circumference divided by its diameter. Given that you know pi is irrational, you can see that the diameter and the circumference cannot both be integers at the same time. read more

Pi Day is over. Well, at least it is over for those of us that write the date as mm/dd/yy (called middle endian). However, there is another way to represent the date. read more

Being an irrational number, π cannot be expressed exactly as a common fraction (equivalently, its decimal representation never ends and never settles into a permanent repeating pattern). Still, fractions such as 22/7 and other rational numbers are commonly used to approximate π. read more

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