4180972 is a whole number.
The whole number portion of 418.0972 is 418
If you have a decimal, it means you have a portion of a number, not a whole number. For example, if you have $2.10, you have two whole dollars, but the ten cents are only a portion of a dollar (and notice, they are a "decimal" -- .10).
what is the whoile number portion of the decimalfor418.0972
5 and the decimal portion is .024
Anything to the left of the decimal point.
It is 418
It is 43
It is 176
The whole number portion of 5.024 is 5.