Bonjour,
Ex. 9 :
0,06/0,02 = (0,06×10)/(0,02×10) = 6/2 = 3
0,5/2 = (0,5×2)/(2×2) = 1/4 = 0,25
23,45/0,1 = (23,45×100)/(0,1×100) = 2345/10 = 234,5
64/0,4 = (64×10)/(0,4×10) = 640/4 = 160
1/0,5 = (1×2)/(0,5×2) = 2/1 = 2
12,1/1,1 = (12,1×10)/(1,1×10) = 121/11 = 11
Ex. 10 :
1,5/0,12 = (1,5×100)/(0,12×100) = 150/12 = 75/6 = 25/2 = 12,5
Ex. 11 :
54,25 ÷ 15,5 = 3,5 h = 3 h 30 mn
