Bonjour Pouvez-vous me dire si c’est juste niveau cinquième

Hello,

26/48 + 11/24 = 26/48 + (11 * 2) / (24 * 2) = 26/48 + 22/48 = 48/48 = 1

14/12 - 25/30 = (14 * 5) / (12 * 5) - (25 * 2) / (30 * 2) = 70/60 - 50/60 = 20/60 = 2/6 = 1/3

1 - 15/30 + 9/6 = 30/30 - 15/30 + 45/30 = 15/30 + 45/30 = 60/30 = 6/3 = 2

Réponse :

Explications étape par étape

Bonsoir

D = 26/48 + 11/24

D = 13/24 + 11/24

D = 24/24

D = 1

E = 14/12 - 25/30

E = 7/6 - 5/6

E = 2/6

E = 1/3

F = 1 - 15/30 + 9/6

F = 1 - 1/2 + 3/2

F = 1 + 2/2

F = 2