To convert a whole number into a decimal, you simply add a decimal point followed by zeros. For instance, the whole number 5 can be converted to a decimal by writing it as 5.0, 5.00, or even 5.000. All these forms represent the same value.
The decimal indicates that there are no fractional parts, and the zeros that follow the decimal point are placeholders. They signify that the number does not have any additional value beyond the whole number.
In summary, the process is straightforward: Take the whole number and append a decimal point and zeros according to the desired precision. This method is applicable to any whole number.