<p><br /> Prime Minister David Cameron has welcomed his predecessor Baroness Thatcher to 10 Downing Street for a private meeting.<br /> </p><p><br /> The PM came to the door of Number 10 to welcome Lady Thatcher and helped the visibly frail former premier from her limousine.<br /> </p><p><br /> Lady Thatcher, 84, waved to waiting photographers but made no comment as she entered the address from which she led the UK between 1979 and 1990.<br /> </p><p><br /> Wearing a powder-blue dress and coat, the former PM briefly held on to the railings outside Number 10 as she mounted the doorstep to pose for pictures outside the front door.<br /> </p><p><br /> Lady Thatcher famously visited Tony Blair and Gordon Brown at Number 10 shortly after their elevation to the premiership in 1997 and 2007 respectively.<br /> </p><p><br /> She was last in 10 Downing Street in November last year when she attended the unveiling of her portrait - the first painting of a living politician to be hung in the official residence of the Prime Minister.<br /> </p>
