(Reuters) – UK healthcare software provider EMIS Group Plc will be acquired by a group led by health services firm Optum UK for about 1.24 billion pounds ($1.51 billion), the companies said on Friday. The 1,925 pence-per-share, all-cash offer represents a 49% premium to EMIS’ closing price on Thursday. ($1 = 0.8205 pounds) (Reporting by Aby Jose Koilparambil in Bengaluru; Editing by Sriraj Kalluvila)