Use Int function, if you want to get integer part of real number and Fruc function for getting fractional part of it.
procedure TForm1.Button1Click(Sender: TObject);
var
Number: Real;
begin
Number:=StrToFloat(Edit1.Text);
Label2.Caption:=
'Integer part is '+
FloatToStr(Int(Number));
Label3.Caption:=
'Fractional part is '+
FloatToStr(Frac(Number));
end;