what is decimal number

A decimal number is a number that has a decimal point followed by digits that show the fractional part. It is a number expressed in the scale of tens and is referred to as decimal if it contains a decimal point and represents a whole number or a fraction of a whole number. Decimal numbers consist of two parts, a whole number part and a fractional part separated by a decimal point. The decimal system is the standard system for denoting integer and non-integer numbers. Decimal numbers can be classified into two categories based on the number of digits after the decimal point: terminating decimals and repeating decimals. Terminating decimals are decimal numerals with a finite number of non-zero digits after the decimal separator, while repeating decimals are infinite decimals that, after some place, repeat indefinitely the same sequence of digits.