The number of digits used to write it out doesn't need to be thought of as an indicator of simplicity once you realize that you're rounding for a purpose unrela

The number of digits used to write it out doesn't need to be thought of as an indicator of simplicity once you realize that you're rounding for a purpose unrelated to reducing the number of digits written after the decimal point (which is a typical reason to round, but is not the reason here). Just think of dividing a dollar 10 ways versus dividing it 4 ways.