![]() ![]() Remember also, these are never-ending digits, with no repeating pattern.The last known record calculation of Π is up to 2.7 TRILLIONdigits! For example, 4 can be written as 4/1, 65 can be written as. ![]() While it can be approximated to 3.14159, the actual value of Π only begins with 3.14159. Every whole number is a rational number, because any whole number can be written as a fraction.Π is the ratio of a circle’s circumference to its diameter.The most famous example of an irrational number is Π or pi.A decimal that keeps repeating is a good example of this.In other words, it’s a decimal that never ends and has no repeating pattern. These are also called terminating decimals. In the same way, a decimal that does not keep repeating (.eg. So, what makes a fraction/decimal rational?Ī fraction x/y, where numerator x is an integer (…,-4, -3, -2, -1, 0, 1, 2, 3,4,…) and denominator y is a natural number (1, 2, 3,4) is rational. These numbers include all the above (natural, whole, integers) PLUS some types of fraction/decimal. All natural numbers are whole numbers and integers. ![]() Integers include all whole numbers (0) and also the negatives of the natural numbers: so (∞…,-4, -3, -2, -1, 0, 1, 2, 3,4, …∞).
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