How to calculate posterior probabilities?

P(UH)=1-P(UL)=0.4 P(F)=0.45*P(FH)+0.55*(1-P(UL)=0.58 P(U)=1-P(F)=0.42 P(HF)=0.8*0.45=0.36 P(LF)=0.55*P(UL)=0.33