Bonjour,
Calculer les expressions suivantes et simplifier le plus possible les résultats.
A=-1/4+53/4
A = 52/4
A = (4 x 13) / (4 x 1)
A = 13.
B=-15/7-6/7
B = - 21/7
B = (7 x - 3) / (7 x 1)
B = - 3
C=27/8×12/3
C = 324/24
C = (12 x 27) / (12 x 2)
C = 27/2.
D=(-35/9)/(5/18)=
D = - 35/9 x 18/5
D = - 630/45
D = (45 x - 14) / (45 x 1)
D = - 14.
