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Sagot :

Réponse :

A= 3/15- 2/50

A=150/750-30/750

A=120/750

A=4/25

B=-2.62*10-3

B= -2.62*-1000

B= 2620

C= 3/4

D=1+3/4 / 7/3

D= 1+3/4*3/7

D= 1+9/28

D=37/28

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