The hosts led 4-0 at the break after Le Fondre bagged a 33 minute treble and Pavel Pogrebnyak added another from the spot.
David Nugent struck a late winner for Leicester as they beat Leeds 1-0 in the day’s early kick-off to assert their position at the top of the table.
QPR are back up to second place after a 2-1 win over Huddersfield at Loftus Road, leapfrogging Burnley who could only manage a 1-1 draw with Sheffield Wednesday at Turf Moor.
Charlie Austin was again Rangers' hero, scoring a brace to make it 14 goals for the season, with his second-half efforts coming either side of a 68th-minute equaliser from Nakhi Wells.
Faltering Burnley are now six points behind Leicester as their form has seen them win just four of their last 14 league games following their seven-match winning run in September and October.
Sam Vokes made it four goals in his last four matches in the 43rd minute, but the Owls secured a point with Chris Maguire's strike on the stroke of half-time. Behind the leading trio,
Derby and Nottingham Forest remain in the hunt for promotion after the East Midlands duo enjoyed home wins over Brighton and Blackburn respectively.
Patrick Bamford, on loan at Derby from Chelsea, came off the bench to score the only goal of the game - his first for the club but 18th for the season after netting 17 for the MK Dons in another loan spell - to beat Brighton 1-0.
At the City Ground, Forest crushed Blackburn 4-1. Henri Lansbury scored two first-half penalties and although Ben Marshall pulled one back for Rovers in the 37th minute, Jamie Paterson and Andy Reid sealed it in the second half for the hosts.
Remarkably, the bottom four all won - and without conceding a goal - to give themselves hope of beating the drop.
Rock-bottom Barnsley ended a six-match winless run with a 2-0 success over Blackpool at Oakwell courtesy of two goals from Chris O'Grady, the first from the penalty spot.
A first-half brace from James Hayter enabled Yeovil to spring a surprise with their own 2-0 triumph at Birmingham.
After a run of eight games without a win, Doncaster's Chris Brown netted his own double, with his second from the spot, either side of a James Coppinger effort as Rovers beat Wigan 3-0 at the Keepmoat Stadium.
For Millwall, debutant Tottenham loanee Ryan Fredericks was on target as the Lions defeated Ipswich 1-0 at the New Den to stop the rot at six winless games.
It means Charlton are only above the bottom three on goal difference from Doncaster after their 1-0 loss at Middlesbrough, for whom Emmanuel Ledesma was on target whilst the Addicks had Rhoys Wiggins sent off late on.
The only other game of the day failed to produce a winner as Bournemouth v Watford finished 1-1.
Gabriele Angella gave Watford the lead on the stroke of half-time, only to be sent off as Lewis Grabban won and converted a 59th-minute penalty.
- Sports & Recreation
- Pavel Pogrebnyak
- Nick Blackman