Laravel Route resource does not delete table data?

working with Laravel 5.6 and Mysql. and need delete table data using following data.

<td><a class="button is-outlined" href="/student//delete">Delete</a></td>

and Controller delete function is,

public function delete($id)
    {
         DB::table('students')
            ->where('id', $id)

            ->delete();

        return redirect()->back();
    }

and route is like this,

Route::resource('student','StudentController');

but when click delete button it is generated following error message, (1/1) NotFoundHttpException

how can fix this problem?

via Chebli Mohamed