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BONJOUR !
Calculer.
I=-5/4x7
K=-48/25x15\-42
L=-15/28X9/-5 X21/27
J=4/11X-2/3
Merciii


Répondre :

Bonjour;

I=-5/4*7

= -35/4

K= -48/25*15\-42

= -720/- 1 050 = 720/ 1 050 = 72/105 = 24/35

L= -15/28*9/-5 *21/27

= -135/-140 *21/27

= 135/140 *7/9

= 27/28*7/9

= 189/ 252= 63/ 84 = 21/ 28= 3/4

J= 4/11*-2/3

= -8/33