8*3/4*（-4/5）*（-6/7）*7/8

Question

8*3/4*（-4/5）*（-6/7）*7/8

Answer 1

8*3/4*(-4/5)*(-6/7)*7/8=
8*3/4=6
6*(-4/5)=-24/5
-24/5*-6/7=144/35
144/35*7/8=18/5=3 3/5

Answer 2

8•3:4•(-4:5)•(-6:7)•7:8=3.6