Réponse :
Explications étape par étape
Bonsoir
A = 7/2 x 3/5
A = (7 x 3)/(2 x 5)
A = 21/10
B = 4/11 x 2/3
B = (4 x 2)/(11 x 3)
C = 7/4 : 5/3
C = 7/4 x 3/5
C = (7 x 3)/(4 x 5)
D = -9/5 : 7/4
D = -9/5 x 4/7
D = (-9 x 4)/(5 x 7)
E = 15/16 x 28/35
E = (15 x 28)/(16 x 35)
E = (3 x 5 x 7 x 4)/(4 x 4 x 7 x 5)
E = (3 x 140)/(4 x 140)
F = -1/3 x (-12)
F = 12/3
F = (3 x 4)/3
G = -28/9 : 4
G = -28/9 x 1/4
G = -28/4 x 1/9
G = -7 x 1/9
H = -9/12 : -12/36
H = (-3 x 3)/(3 x 4) x -36/12
H = -3/4 x -(3 x 12)/(1 x 12)
H = 3/4 x 3
H = 3/3 x 1/4
I = (5/7 - 2) / (5/3 - 4/7)
I = (5/7 - 14/7) / (35/21 - 12/21)
I = (-9/7) / (23/21)
I = -9/7 x 21/23
I = -9/23 x 21/7
I = -9/23 x 3
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Réponse :
Explications étape par étape
Bonsoir
A = 7/2 x 3/5
A = (7 x 3)/(2 x 5)
A = 21/10
B = 4/11 x 2/3
B = (4 x 2)/(11 x 3)
C = 7/4 : 5/3
C = 7/4 x 3/5
C = (7 x 3)/(4 x 5)
D = -9/5 : 7/4
D = -9/5 x 4/7
D = (-9 x 4)/(5 x 7)
E = 15/16 x 28/35
E = (15 x 28)/(16 x 35)
E = (3 x 5 x 7 x 4)/(4 x 4 x 7 x 5)
E = (3 x 140)/(4 x 140)
F = -1/3 x (-12)
F = 12/3
F = (3 x 4)/3
G = -28/9 : 4
G = -28/9 x 1/4
G = -28/4 x 1/9
G = -7 x 1/9
H = -9/12 : -12/36
H = (-3 x 3)/(3 x 4) x -36/12
H = -3/4 x -(3 x 12)/(1 x 12)
H = 3/4 x 3
H = 3/3 x 1/4
I = (5/7 - 2) / (5/3 - 4/7)
I = (5/7 - 14/7) / (35/21 - 12/21)
I = (-9/7) / (23/21)
I = -9/7 x 21/23
I = -9/23 x 21/7
I = -9/23 x 3