Website Statistics Exercice 1 Calculer et simplifier si cest possible

Répondre :

1) 1/6+ (1(3))*2= 1/6 + 1/9 = 1x3/ 3x6 + 1x2/9x2= 3/18 + 2/18 = 5/18
Donc la réponse est 5/18
hirondelle52

Bonsoir;

1/6 +1/9

= 1/6 *3/3 +1/9*2/2

= 3/18 +2/18

= 5/18

-7/4  -8/12

= -7/4*3/3 -8/12

= -21/12 -8/12

= -29/12

(5/7 *3/3 -2/3*7/7) *(1*3/3 -5/3)

= (15/21 -14/21) * (3/3-5/3)

= 1/21 * 2/3

= 2/63

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