The ratio of a case means the ratio decidendi of a case, ratio decidendi meaning in latin 'reason for deciding'

how do the following establish whether precedent is binding or persuative using ratio decidendi and obiter dictum

The part of decision which is binding

Obiter Dictum, Ratio Decidendi and Stare Decisis

Folke Schmidt has written: 'The ratio decidendi' 'The law of labour relations in Sweden'