It is a decimal fraction or a rational number.
Decimal.
It is a decimal number which is a real number.Link below.
A terminating decimal or a decimal that, after a finite number of digits, settles into a repeating pattern (known as a recurring decimal). This need not happen straight after the decimal point.
It is the decimal expression of a positive rational and real number.
a negative decimal number, a rational number, a nice number
depends on what kind of number it is
Rational number and a decimal.
It is a decimal fraction or a rational number.
Decimal.
It is a decimal number which is a real number.Link below.
A terminating decimal or a decimal that, after a finite number of digits, settles into a repeating pattern (known as a recurring decimal). This need not happen straight after the decimal point.
It is the decimal expression of a positive rational and real number.
It is a non non-terminating, non-recurring decimal. It is an irrational number.
Decimal
You can add a period, and a zero, after the whole number. Or you can just consider the whole numbers themselves a special kind of "decimal number".
Decimal numbers that can't be expressed as fractions are irrational numbers