A decimal separator is a symbol used to separate the integer part from the fractional part of a number written in decimal form (e.g., "." in 12.45). Different countries officially designate different symbols for use as the separator. ... Any such symbol can be called a decimal mark, decimal marker or decimal sign.

What does the decimal separate?

It is a point or dot we use to separate the whole number part from the fractional part of a decimal number. A decimal number is a number that consists of a whole number and a fractional part. The decimal point separates the whole number from the fractional part.

Which country uses comma as decimal separator?

The majority of European countries use the decimal comma. Among them are Spain, France, Norway, the Czech Republic, Denmark, and more. However, it's important to note that the United Kingdom is an exception because they tend to follow the Imperial System, which uses the decimal point.