BERLIN (Reuters) - German Chancellor Angela Merkel said on Wednesday she would do everything she could to achieve an orderly Brexit before the March 29 deadline but said any deal must be fair and work in practice.

With just weeks before Britain is due to leave the European Union, Prime Minister Theresa May is trying to persuade the EU to reopen a divorce agreement agreed by both sides last year but rejected by British lawmakers.

“We agree that we must do everything to achieve an orderly Brexit,” Merkel told reporters at a news conference with Luxembourg Prime Minister Xavier Bettel.

“It is about providing as much security as possible and we both feel a duty to do everything for a deal but it must be a fair agreement that works in practice and we have some work ahead,” she said.

Bettel ruled out renegotiating the EU’s deal with Britain.

“It is not possible to find a better result. The priority is to protect the integrity of the EU internal market and minimize the effects of Brexit for citizens,” he said.