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February 28, 2015

February 28, 2015

Posted by **Amanda** on Monday, February 4, 2008 at 4:28pm.

- Math -
**Damon**, Monday, February 4, 2008 at 4:39pmthe ratio of two integers is rational by definition.

- Math -
**Damon**, Monday, February 4, 2008 at 4:46pmNow an irrational number therefore can NOT be represented by a ratio of integers.

For example the ratio of the circumference of a circle to its diameter, pi, can not be calculated exactly no matter how many digits you carry in numerator and denominator.

You can approximate pi by ratios of integers such as 22/7, but it is not exact.

pi starts out

3.14159 etc

but 22/7 is

3.142857 etc

- Math -

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