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Sagot :

Bonjour,

A= 9/3 +1/3 = 10/3

B= 3/7 - 15/7 = -12/7

3/24 = 1/8

-12/7 + 1/8

=  -96/56 + 7/56 = -89/56

C= 4 - 12/5

= 20/5 -12/5

= 8/5

D= -7/6 -1

= -7/6 -6/6 = -13/6

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