Réponse :

Explications étape par étape

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A = 2/3 : 5

A = 2/3 x 1/5

A = 2/15

B = (-5/7) : (-4)

B = 5/7 x 1/4

B = 5/28

C = 5/6 : (7/-11)

C = 5/6 x -11/7

C = -55/42

D = 8 : 1/8

D = 8 x 8

D = 64

E = (-3/2) : (-5/7)

E = -3/2 x -7/5

E = 21/10

F = 1/10 : (-7/9)

F = 1/10 x -9/7

F = -9/70

G = 8/-15 : (-4/5)

G = 8/15 x 5/4

G = 8/4 x 5/15

G = 2 x 1/3

G = 2/3

H = 9/10 : (-3)

H = 9/10 x -1/3

H = -9/3 x 1/10

H = -3 x 1/10

H = -3/10

I = -4/45 : 16/15

I = -4/45 x 15/16

I = -4/16 x 15/45

I = -1/4 x 1/3

I = -1/12

J = -5/6 : (-15/18)

J = -5/6 x -18/15

J = 18/6 x 5/15

J = 3 x 1/3

J = 3/3

J = 1

K = 12 : 3/-4

K = 12 x -4/3

K = -4 x 12/3

K = -4 x 4

K = -16

L = 1 : -7/4

L = 1 x (-4/7)

L = -4/7