Réponses

2014-06-01T12:49:12+02:00
0,2 = 2/10 = 2/(5*2) = 1/5
1,6 = 16/10 = (8x2)/(2x5) = 8/5
0,45 = 45/100 = (5x9)/(5*20) = 9/20
0,08 = 8/100 = (2x4)/4*25) = 2/25