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Is a repeating decimal a rational number?
Always
Is a terminating decimal always rational?
Yes.
Is a negative decimal always rational?
A terminating or repeating decimal is always rational. Whether it is positive or negative makes no difference. So the answer is no it is not always rational, such as -1/pi
Is a repeating decimal sometimes a rational number?
Repeating decimals are always rational.
Is 7.11 rational or irrational?
A number with a finite number of decimal digits is always rational. (If the number of decimal digits is infinite, the number is rational only if there is a repeating pattern.)
Are the repeating decimal always rational number?
Yes.
Is a repeating decimal always a rational number?
Yes.
A repeating decimal is an irrational number?
Not always because any decimal that can be expressed as a fraction is a rational number as for example 0.33333.....repeating can be expressed as 1/3 which is a rational number
Why can a terminating decimal always be written as a decimal fraction?
Because a terminating decimal is a rational number that can also be expressed as a fraction
Is 0.50550555 a rational number?
It depends on if it is continued or not. A terminal decimal is always rational (such as 0.5) If it has a repeating pattern, its also rational (0.3333333333333333). If you mean 0.50550555055550555550555555 etc.) this is not rational.
Is 25.8125 irrational?
If the number of digits after the decimal point is finite, then the number will always be RATIONAL.
Is a repeating decimal rational or irrational?
A repeating decimal is rational.
