Convertir en heure et minute svp 0.5h : 3.25h: 7.6h: 220min: 3660s: 4260s:

bonjour

0.5 h = 0 h + 0.5*60 =  30 minutes

3.25 = 3 h + 0.25*60 = 3 h 15 minutes

7.6 h = 7 h 36 minutes

220 minutes = 3 * 60 + 40 = 3 h 40 minutes

3 660 s = 1 / 3600 + 60 =  1 h + 60 s = 1 h 01 minutes

4 260 s =  1 x 3600 + 660
               660 =  11 * 60 + 0
4 260 s = 1 h 11 minutes