'Dr Wong Chin Huat of the Penang Institute said the bill required only a simple majority of all MPs present in the Dewan Rakyat at the time of voting. This means PAS can get it through if all Umno MPs also say yes to it.
It is not a case whereby PAS and Umno need 112 votes, a simple majority, in the house in order to get the bill through, said Wong, referring to a common misconception about passing legislation or amendments. If there are enough MPs who support it in the Dewan Rakyat at the time of voting versus those who don't support it or those who abstain from voting, then the bill passes.
Parliament has 222 members. PAS has 21 MPs and Umno 88 and if the latter said they will support it, then it would bring the number of MPs who support the bill at 109. In order to defeat the bill, there must be at least 110 votes against it. The only way the bill can be defeated is if almost all PKR, DAP and the other Barisan Nasional MPs who opposed the bill, come out to vote against it in the house.'
See more at: http://www.themalaysianinsider.com/malaysia/article/without-pkr-pas-can-still-push-through-hudud-bill#sthash.4Q2R1Vwn.dpuf