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Sagot :

Bonsoir,

A= 15/12 + 2/12 = 17/12

B= 14/30 -9/30 = 5/30 = 1/6

C= -15/24 + 10/24 = -5/24

Bonsoir.

Calculer :

A = 5/4+1/6

A = 15+2/12

A = 17/12

B = 7/15-3/10

B = 14-9/30

B = 5/30

B = 1/6

C = -5/8+5/12

C = -15+10/24

C = -5/24

Bonne soirée.

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