bjr
5/10 => 5 : 10 = 0,5 et 0,5 x 100 = 50%
75% = 75 : 100 = 0,75 = 75/100 = 15x5/20x5 = 15/20 = 5x3/5x4 = 3/4
1/4 = 1 : 4 = 0,25 x 100 = 25%
20% = 20 : 100 = 0,2 = 20/100 = 20x1/20x5= 1/5
0,3 => 30 : 100 = 30% = 30/100 = 3/10
et le dernier.. pour vous :)
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bjr
5/10 => 5 : 10 = 0,5 et 0,5 x 100 = 50%
75% = 75 : 100 = 0,75 = 75/100 = 15x5/20x5 = 15/20 = 5x3/5x4 = 3/4
1/4 = 1 : 4 = 0,25 x 100 = 25%
20% = 20 : 100 = 0,2 = 20/100 = 20x1/20x5= 1/5
0,3 => 30 : 100 = 30% = 30/100 = 3/10
et le dernier.. pour vous :)