Mathématique 4ème.
Bonjour j'ai besoin d'aide pour l'exercice 1 c'est assez urgent merci d'avance.
Bonjour j'ai besoin d'aide pour l'exercice 1 c'est assez urgent merci d'avance.
More Questions From This User See All
Copyright © 2024 ELIBRARY.TIPS - All rights reserved.
Lista de comentários
Verified answer
Bonjour,II-
A = - 4/9 x (- 63/20)
A = 252/180
A = 36 x 7 / 36 x 5
A = 7/5
B = (- 14/25) : 7/10
B = (- 14/25) x 10/7
B = - 140/175
B = 35 x - 4 / 35 x 5
B = - 4/5
C = (3/7 - 3) : 14/9
C = (3/7 - 3 x 7 / 1 x 7) x 9/14
C = (3/7 - 21/7) x 9/14
C = - 18/7 x 9/14
C = - 162/98
C = 2 x - 81 / 2 x 49
C = - 81/49
III-
D = 6/5 - 2/7 x 21/8 - 19/20
D = 6/5 - 42/56 - 19/20
D = 6/5 - 14 x 3 / 14 x 4 - 19/20
D = 6/5 - 3/4 - 19/20
D = 6 x 4 / 5 x 4 - 3 x 5 / 4 x 5 - 19/20
D = 24/20 - 15/20 - 19/20
D = 24/20 - 34/20
D = - 10/20
D = 10 x - 1 / 10 x 2
D = - 1/2
E = 2/7 - 5/2 : 35/4
E = 2/4 - 5/2 x 4/35
E = 2/4 - 20/70
E = 2 x 70 / 4 x 70 - 20 x 4 / 70 x 4
E = 140/280 - 80/280
E = 60/280
E = 20 x 3 / 20 x 14
E = 3/14
G = (3 + 1/3) : (1 + 4/5)
G = (3 x 3 / 1 x 3 + 1/3) : (1 x 5 / 1 x 5 + 4/5)
G = (9/3 + 1/3) : (5/5 + 4/5)
G = 10/3 : 9/5
G = 10/3 x 5/9
G = 50/27