Réponse :
Explications :
Bonjour
Simplifier :
A = 1/4 - 9/4
A = (1 - 9)/4
A = (-8/4)
A = (-2 x 4)/4
A = -2
C = 2 + 5/3
C = (2 x 3)/3 + 5/3
C = 6/3 + 5/3
C = 11/3
E = 1/3 + 2/3
E = (1 + 2)/3
E = 3/3
E = 1
A = 7/2 - 9/10
A = (7 x 5)/(2 x 5) - 9/10
A = 35/10 - 9/10
A = (35 - 9)/10
A = 26/10
A = 2,6
C = -3/30 - 5/20
C = -3/(3 x 10) - 5/20
C = -1/10 - 5/20
C = (-1 x 2)/(10 x 2) - 5/20
C = -2/20 - 5/20
C = -7/20
E = -4/-11 - 2/5
E = 4/11 - 2/5
E = (4 x 5)/(11 x 5) - (2 x 11)/(5 x 11)
E = 20/55 - 22/55
E = (20 - 22)/55
E = (-2/55)
A = 2/3 x 5/7
A = (2 x 5)/(3 x 7)
A = 10/21
C = -8/30 x -10/16
C = 10/30 x 8/16
C = 10/(3 x 10) x 8/(2 x 8)
C = 1/3 x 1/2
C = 1/(2 x 3)
C = 1/6
E = 2/3 : 5/7
E = 2/3 x 7/5
E = (2 x 7)/(3 x 5)
E = 14/15
G = -8/30 : -10/16
G = 8/30 x 16/10
G = 8/30 x (2 x 8)/(2 x 5)
G = 8/30 x 8/5
G = (8 x 8)/(30 x 5)
G = 64/150
