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Bonjour j'aurais besoin d'aide svp merci beaucoup d'avance ❤

Bonjour Jaurais Besoin Daide Svp Merci Beaucoup Davance class=
Bonjour Jaurais Besoin Daide Svp Merci Beaucoup Davance class=

Répondre :

Bonjour,

A = 5/3 - 5/12
A = 5 x 4 / 3 x 4 - 5/12
A = 20/12 - 5/12
A = 15/12
A = 3 x 5 / 3 x 4
A = 5/4

B = - 30 /- 12 x - 18/15
B = 30 x 5 / 12 x 5 x - 18 x 4 / 15 x 4
B = 150/60 x - 72/60
B = 78/60
B = 6 x 13 / 6 x 10
B = 13/10

C = 30/14 : 90/21
C = 30/14 x 21/90
C = 630/1260
C = 630 x 1 / 630 x 2
C = 1/2

D = - 7 : 2/3
D = - 7 x 3/2
D = - 21/2

D = 5 - 3 (2 - 1/3)
D = 5 - 3 (2 x 3 / 1 x 3 - 1/3)
D = 5 - 3 (6/3 - 1/3)
D = 5 - 3 (5/3)
D = 5 - 15/3
D = 5 - 5
D = 0

F = - 5/2 : 8
F = - 5/2 x 1/8
F = - 5/16

G = 3/2 - 1/5 : 2/5
G = 3/2 - 1/5 x 5/2
G = 3/2 - 5/10
G = 3 x 5 / 2 x 5 - 5/10
G = 15/10 - 5/10
G = 10/10
G = 1