Decimals

A decimal numbering system uses base 10 as the representation of a fraction or real number. A fraction can be expressed in a decimal form, as in the following example.

Decimal Point

Decimal point determines the place value of a number.

Pure Decimal

Decimal fraction such as 0.02, 0.004, and 0.0009 without a whole number is called pure decimal.

Mixed Decimal

Decimal fraction combined with a whole numbers such as 2.3, 3.5 and 24.68 is called mixed decimal. For example, a mixed decimal 23.156 can be written as follows.

= 23 + 0.1 + 0.05 + 0.006