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GUILOU3011
Answered

bonjour je n'y arrive pas a cet ex merci d'avance A= 5/6 +-1/3 B=45/15-7/3
C=7/9 -1/-27 D= 4/11+2 E= 3/2x5/7 F=-4/11x1/3 G 3x-7/5 H= -3/2 divisé -5/7 I=-5/7 divisé 4

Sagot :

Bonjour,

5/6 - 1/3 = 5/6 - 2/6 = 3/6 = 1/2

45/15 - 7/3 = 45/15 - 35/15 = 10/15 = 2/3

7/9 + 1/27 = 21/27 + 1/27 = 22/27

4/11 + 2 = 4/11 + 22/11 = 26/11

3 * -7/5 = (3*-7)/5 = -21/5

-3/2 * -7/5 = 21/10

-5/7 * 1/4 = (-5*1)/(7*4) = -5/28

E = 3/2 * 5/7 = (3 * 5) / (2 * 7) = 15/14

F = -4/11 * 1/3 = (-4 * 1)/(11 * 3) = -4/33

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