3,7h=......... 0,75h=......... 2,45h=...... svp​

bonjour

3.7 h = 3 h + 0.7 * 60 =  3 h 42 min

0.75 h = 0 h +  0.6 * 75 =   45 min

2.45  h = 2 h  27 min