Réponse :
E = (1/2 - 3/4) x 16/9
= (2/4 - 3/4) x 16/9
= - 1/4 x 16/9
= - 4/9
F = 1/2 - 3/4 x 16/9 simplification
= 1/2 - 4/3
= 3/6 - 8/6
= - 5/6
G = 1/5 - 3/10 x 1/6 + 1/2
= 1/5 - 1/20 + 1/2
= 4/20 - 1/20 + 10/20
= 13/20
H = (1/5 - 3/10) x (1/6 - 1/2)
= (2/10 - 3/10) x (1/6 - 3/6)
= - 1/10 x - 2/6
= 1/30
Explications étape par étape :
