Réponse :
Bonjour
Explications étape par étape
A = 11/24 * 6
A = (11*6)/(6*4)
A = 11/4
A = 2.75
B = 11/6 *9
B = (11*9)/6
B = (11*3*3)/(3*2)
B = 33/2
B = 16.5
C = 5/4 * 2
C = (5*2)/(2*2)
C = 5/2
C = 2.5
D = 5/3 * 2.4
D = 5/3 * 24/10
D = (5*24)/(3*10)
D = (5*3*4*2)/(3*5*2)
D = 4
E = 5/7 * 2.8
E = 5/7 * 28/10
E = (5*28)/(7*10)
E = (5*7*2*2)/(7*5*2)
E = 2