Sagot :
Réponse :
Bonsoir;
Explications étape par étape
A= -9/3+4/3 =-5/3
B= -8/20 -35/20 = -43/20
C = -28/24 -5/24 = -33/24
D = 10/36 -9/36 =1/36
E = -3/-5 x 32(-35)/21 =
-32(-35)/-5x7 = -32
2) H = a - b +c
H = -2/15 -( -5/6) +(-1/10) =
-8/60 +50/60 -6/60 = 36/60 = 18/30 = 9/15 =3/5