British Prime Minister Theresa May is seen outside Downing Street in London, Britain March 13, 2019. REUTERS/Toby Melville

LONDON (Reuters) - Goldman Sachs said it sees a 55 percent probability of Prime Minister Theresa May getting a Brexit divorce deal ratified even though parliament overwhelmingly rejected the deal for a second time.

Unless May can get a Brexit deal approved by the British parliament, then she will have to decide whether to delay or cancel Brexit or thrust the world’s fifth largest economy into chaos by leaving without a deal.

Goldman said it saw the probability of a no-deal exit at 15 percent and the probability of no Brexit at around 35 percent.

The investment bank said a third vote on version of May’s deal is likely within weeks after the European Union summit on 21-22 March.