CALCULE

A)3+5-1+7

=
4 2 6 8

B)-(-3 /5)- (+4/2) +(5/4)=

C) 8/7: 9/6=

D)(-2/3): (-5/7):(-4/10)=

E) 10/3 : 8/7=

F)-(-4/3) : (-2/5) : (92)

G) 5/8/4/5=

H) 9/4/5=

2
I) (-7/11) =

3
J)-(-3/5) =