MMGS unit selected but showing fractional inches.

Hi

im using solidworks2016 ,and i set my unit to mmgs and i dont define a fraction for it,but in both drawings and assembly  iv got the dimensions showing in inches and fractional.even the value in property manager in drawing shows in mm but in drawing its a fractional inches until i put the unit precision to non ,then every thing go right and it will show in mm, is there and way to correct this.

tnx

SolidworksGeneral