hey salut tout le monde, j'aurais besoin d'aide pour un ex de maths svp effectue les calculs suivants en détaillant les étapes et simplifie si possible: a/ 4/11+2 b/8/-91+-1/7 c/5/2- -45/4+2/8 d/4-5/-49+(-8/7) e/-7/50+2/75 f/1/5+-2/3 g/ 1/12-1/9 l/ 4/18+5/27 m/17/-24+(-5/36) n/3/16- -1/12 0/8/-17 -(-1/15) ce serais vraiment sympa, j'irais vous aider en retour merci d'avance
Lista de comentários
Verified answer
Bonjour,a/ 4/11+2 = 4/11 + 2 x 11 / 1 x 11 = 4/11 + 22/11 = 26/11
b/8/-91+-1/7 = - 8/91 - 1 x 13 / 7 x 13 = - 8/91 - 13/91 = - 21/91 = 7 x - 3 / 7 x 13 = - 3/13
c/5/2- -45/4+2/8 = 5 x 4 / 2 x 4 + 45 x 2 / 4 x 2 + 2/8 = 20/8 + 90/8 + 2/8 = 112/8 = 8 x 14 / 8 x 1 = 14
d/4-5/-49+(-8/7) = 4 x 49 / 1 x 49 + 5/49 - 8 x 7 / 7 x 7 = 196/49 + 5/49 - 56/49 = 145/49
e/-7/50+2/75 = - 7 x 3 / 50 x 3 + 2 x 2 / 75 x 2 = - 21/150 + 4/150 = - 17/150
f/1/5+-2/3 = 1 x 3 / 5 x 3 - 2 x 5 / 3 x 5 = 3/15 - 10/15 = - 7/15
g/ 1/12-1/9 = 1 x 3 / 12 x 3 - 1 x 4 / 9 x 4 = 3/36 - 4/36 = - 1/36
l/ 4/18+5/27 = 4 x 3 / 18 x 3 + 5 x 2 / 27 x 2 = 12/54 + 10/54 = 22/54 = 2 x 11 / 2 x 27 = 11/27
m/17/-24+(-5/36) = - 17 x 3 / 24 x 3 - 5 x 2 / 36 x 2 = - 51/72 - 10/72 = - 61/72 = 3 x - 17 / 3 x 24 = - 17/24
n/3/16- -1/12 = 3 x 3 / 16 x 3 + 1 x 4 / 12 x 4 = 9/48 + 4/48 = 13/48
0/8/-17 -(-1/15) = - 8 x 15 / 17 x 15 + 1 x 17 / 15 x 17 = -120/255 + 17/255 = 103/255