Bonjour,
Calculer:
A= 1/3-1/2+5/6
A= (1x2-1x3)/6+5/6
A= -1/6 + 5/6
A= -4/6
A= 2/3
B= 1- (1/3)+(1/9)-2/18
B= (18-6+2-2)/18
B= 12/18
B= 2/3
C= (2/5) x (5/3)+ (3/2) x 4
C= 2/3 + 12/2 barrer les 5, il reste 2/3
C= 2/3 + 6
C= (2 + 6x3)/3
C= 20/3
D= 1+3x(-2/7)+2x(-5/15)
D= (7-6)/7 - 10/15
D= 1/7 - 2/3
D= 3-14/ 21
D= -11/21
E= (1/3 - 1/2) / (1 + 5/3) - 2
E = (2/6 - 3/6) / (8/3) - 2
E = -1/6 / (8/3) - 2
E = -1/6 x 3/8 - 2
E = -3/48 - 2
E= -3/48 - 96/48
E= - 99/48
E= -33/16
