8.18 = 818/100. Since both 818 and 100 are integers, they comprise fractional form as required.
No. It is a rational number. Any repeating decimal or terminating decimal is rational.
Decimals are real. They can be 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.)
It is still a rational number.
Any terminating or non-terminating decimal digit is rational. The easiest way to look at this is, writing the number in the fractional from. 0.18 can be written as 18/100. Now, by the definition of a rational from, 18/100 is of the standard "p/q" from where q is not equal to 0 (q=100 here). Thus, it is a rational number.
4.56 = 456/100 = 114/25 or 414/25
It is a rational number, with a terminating decimal representation. It is not a whole number but comprises a fractional part.
The answer is not a rational number and therefore cannot be written out in full in decimal (or fractional) notation. It is approx 5.196152.
0.25 is a rational fractional number expressed in decimal form. It is not a whole number of any type.
Numbers can be ordinal, cardinal or imaginary. They could also be fractional, decimal, rational or irrational.
A rational number is a number that can be expressed in fractional form.
The set of rational numbers is the union of the set of fractional numbers and the set of whole numbers.
It is a decimal fraction. The equivalent rational fraction is 38/1000 = 19/500.A mixed number, in decimal form, has at least one non-zero number before (to the left of) the decimal point. In rational form, the absolute value of the numerator must be at least as large as the denominator.
Any of them. A decimal number is simply a way of representing a number in such a way that the place value of each digit is ten times that of the digit to its right. A decimal representation does not require a decimal point, nor does it require a fractional part.
No. A decimal number is simply a way of representing a number in such a way that the place value of each digit is ten times that of the digit to its right. If it does not contain a fractional part then the decimal representation does not require a decimal point. So, for example, 547 is a decimal number as well as an integer.
It depends. A terminating decimal is a rational number. A decimal which, after a finite number of places, becomes a repeating (or recurrent) decimal is also a rational number. A decimal that is not terminating, nor [eventually] settles into a recurring pattern is not a rational number. Note that the decimal need not become recurring immediately.
Yes. Any terminating decimal is a rational number. Any repeating decimal also.