Va rog exercițiul 35 b,d,f dau coroanaaaaaa repedeeeeee

Răspuns:
b)8,4:(-0,42)=-(8,4:0,42)= -20
d)-4 4/5:8/15=-4x2/3=-2x3=-6
f) -0,78:(-2 3/5)=39/50x5/6=13/10x1/2=13/20
Coroana astept.