creo3 config.pro option documentation for: DIM_FRACTION_DENOMINATOR
dim_fraction_denominator
value, 1/32
*
Sets the largest denominator to be used for fractional dimensions. If the fraction can be reduced, then it converts to the lowest possible denominator (for example, 4/32 converts to 1/8). The denominator can be written either directly, for example, 32, or as a reciprocal, for example 1/32.
Available settings:
0
1/2
1/4
1/8
1/16
1/32*
1/64
1/128