AC/CE = BD/DF = > DF = CE·BD/AC = 5·1.5/3 = 7.5/3 = 2.5 cm
AC/AE = AM/AF = > AM = AC·AF/AE = 3·16/8 = 6 cm (AE = AC + CE)
FM/FA = (FA - MA)/FA = (16 - 6)/16 = 10/16 = 5/8