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Sagot :

Bonjour

D = 5 x - 2/ - 5

D = 10/5

D = 2

E = - 7/6 x 7

E = - 49/6

F  = - 2/4 x (- 2)

F = 4/4

F = 1

A = 15/14  x 7/25

A = 105/350

A = (35 x 3) / (35 x 10)

A = 3/10

B = 6/9 x 12/20

B = 72/180

B = (36 x 2) / (36 x 5)

B = 2/5

C = 30/15 x 16/40

C = 480/600

C = (120 x 4)/ (120 x 5)

C = 4/5

D = 48/10 x 5/36

D = 240/360

D = (120 x 2) / (120 x 3)

D = 2/3

E = 72/8 x 7/9

E = 504/72

E = 7

F = 6/8 x 4/3

F = 24/24

F = 1.

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