bonsoir vous pouvez m aider svp c est pour demain merci d avance
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Bonsoir,
A = 5/6 + 2/3
A = 5/6 + (2×2)/(3×2)
A = 5/6 + 4/6 = (5 + 4)/6 = 9/6 = 3/2
B = 3/4 + (-3)/16
B = (3×4)/(4×4) - 3/16
B = 12/16 - 3/16 = 9/16
C = 8/35 + (-4)/5
C = 8/35 + (-4×7)/(5×7)
C = 8/35 - 28/35 = -20/35 = -4/7
Bonne soirée !
Réponse :
Explications étape par étape
Bonjour
Calculer :
A = 5/6 + 2/3
A = 5/6 + (2 x 2)/(3 x 2)
A = 5/6 + 4/6
A = 9/6
A = (3 x 3)/(2 x 3)
A = 3/2
B = 3/4 - 3/16
B = (3 x 4)/(4 x 4) - 3/16
B = 12/16 - 3/16
B = 9/16
C = 8/35 - 4/5
C = 8/35 - (4 x 7)/(5 x 7)
C = 8/35 - 28/35
C = -20/35
C = (-5 x 4)/(5 x 7)
C = -4/7