Bonjour, qui peu m'aider svp et m'expliquer le numéro 52 et 55. Merci bcp

Bonjour,

52)

a. - 3 : 6/5

= - 3 x 5/6

= - 15/6

= (3 x - 5) / (3 x 2)

= - 5/2

b. - 3/6 : 5

= - 3/6 x 1/5

= - 3/30

= (3 x - 1) / (3 x 10)

= - 1/10

c. - 7/5 : (6 + 1/5)

= - 7/5 : [(6 x 5) / (1 x 5) + 1/5]

= - 7/5 : (30/5 + 1/5)

= - 7/5 : 31/5

= - 7/5 x 5/31

= - 35/155

= (5 x - 7) / (5 x 31)

= - 7/31.

55)

a. 2/9 : - 5/3

= 2/9 x - 3/5

= - 6/45

= (3 x - 2) / (3 x 15)

= - 2/15

b. 3/5 : 1/5

= 3/5 x 5

= 15/5

= 3

c. - 1/4 : 3

= - 1/4 x 1/3

= - 1/12

d. 22/7 : - 11

= 22/7 x - 1/11

= - 22/77.

= (11 x - 2) / (11 x 7)

= - 2/7.