Bonjour,
20 % = 20/100 = (20 x 1) / (20 x 5) = 1/5
45 % = 45/100 = (5 x 9) / (5 x 20) = 9/20
70 % = 70/100 = (10 x 7) / (10 x 10) = 7/10
50 % = 50/100 = (50 x 1) / (50 x 2) = 1/2.
Réponse :
20/100= 20:5=4 100:5= 50
Explications étape par étape
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Bonjour,
20 % = 20/100 = (20 x 1) / (20 x 5) = 1/5
45 % = 45/100 = (5 x 9) / (5 x 20) = 9/20
70 % = 70/100 = (10 x 7) / (10 x 10) = 7/10
50 % = 50/100 = (50 x 1) / (50 x 2) = 1/2.
Réponse :
20/100= 20:5=4 100:5= 50
Explications étape par étape