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I assume you mean "repeating decimal". Yes. For example, 1/6 = 0.166666... after that, the digit "6" repeats over and over again. In other cases, it is more than one digit that repeats, over and over. Note that at first there may be other digits, that don't repeat later on.
In general, any fraction (with integers on top and bottom), if converted into a decimal, will eventually start repeating. Conversely, any repeating decimal can be converted into a fraction.
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Is 0.712 repeating a rational number is a irrational?
0.712 repeating is a rational number because it can be expressed as a fraction in the form of 712/999
How do you expresse 0.222 repeating as a rational number?
It is a rational number and expressed as a fraction it is 2/9
What is a decimal called when it is not a repeating or terminating number?
Any decimal that can't be expressed as a fraction is an irrational number
Is 13.21 repeating rational?
Yes, 13.'21' repeating is a rational number because it can be expressed in the form of a fraction as 436/33
Is a repeating number an irrational number?
Not necessarily. An irrational number is one that cannot be expressed as a simple fraction. But such numbers as one-third (rational) is also a repeating number (0.3333333r).
