simplifier c est fraction : 20/100 = 9.09/100 5/100 4.54/100 25/100

20/100 = 20÷5/100÷5 = 4/20
9.09/ 100 = j'sais pas
5/100 = j'sais pas
4,54/100 = j'sais pas
25/100 = 25÷5/100÷5 = 5/20

Bonjour,

20/100 = 20 x 1 / 20 x 5 = 1/5
9.09/100 = 9,09 x 100 / 100 x 100 = 909/10000 - Irréductible
5/100= 5 x 1 / 5 x 20 = 1/20
4.54/100 = 4,54 x 100 / 100 x 100 = 454/10000 = 2 x 227 / 2 x 5000 = 227/5000
25/100 = 25 x 1 / 24 x 4 = 1/4