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Sagot :

Bonjour,

17/25 = (17 × 2)/(25 × 2) = 34/50 = (34 × 2)/(50 × 2) = 68/100

2/5 = (2 × 10)/(5 × 10) = 20/50 = (20 × 2)/(50 × 2) = 40/100

1/10 = (1 × 5)/(5 × 10) = 5/50 = (5 × 2)/(50 × 2) = 10/100

⇒ Même raisonnement pour le dernier

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