bonsoir
15 min = 15/60 d'heure = 0.25 h
10 min = 10/60 = 0.16 h environ
45 min = 45/60 = 0.75 h
1 h 15 min = 1 h + 15/60 = 1 . 25 h
continue selon le modèle
1 h 06 min = 1 h + 6/60 = 1.01 h
1 h 12 min = 1 h + 12/60 = 1.2 h
continue
