Question

2/5+8/3+-4/5+4/5+-2/4

Answer 1

plz refer the above attachment

Answer 2

here is your answer
2/5=0.4
8/3=3.6
4/5=0.8
-2/4=-0.5

So placing these values,
0.4+3.6-0.8+0.8-9.5=5.5

Thank You..