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Sagot :

le a vaut 42 le b vaut 20 le c vaut 62 le d 16

WINNER123

a) -2/3 +5/2 = -4/6 + 15/6 = 11/6

 

b) 3/4 - (-4/5) = 15/20- (-16/20) = 15/20+16/20 = 31/20

 

c) 3/-7 +5/3 = 9/-21 + 35/21 = 26/21

 

d) 5/4 - 11/6 = 15/12 - 22/12 = -7/12

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