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cc tlm en faite je voudrais siplifier le plus possible c'est fraction
B = 1/3 - 1/12
C = 6/7 + 17/21
D= 3/4 - 3/24


Répondre :

bonjour

B = 1/3 - 1/12  = 4/12-1/12 = 3/12 = 1/4

C = 6/7 + 17/21  = 18/21+17/21 = 35/21 =5/3

D= 3/4 - 3/24  = 18/24-3/24 = 15/24 = 5/8
Bonsoir,

B = 1/3 - 1/12
B = 4/12 - 1/12
B = 3/12
B = 1/4
B = 0,25

C = 6/7 + 17/21
C = 18/21 + 17/21
C = 35/21
C = 5/3

D = 3/4 - 3/24
D = 18/24 - 3/24
D = 15/24
D = 5/8
D = 0,625

J'espère t'avoir aidé.