Fractional unit display options are also available for feet and inch display settings. This setting is for display purposes and only impacts a selection of numeric indicators:
Dimension. Both the graphical display of dimensions and their reported values will include the fractional unit designation when set.
Callouts. Vector callouts are converted to display in fractions.
Vectors. Vector Labels will be converted to display in fractions
Watch Windows. The Distance component in a watch window will display in fractions.