Question

0.4×0.04×0.005/0.1×10×0.001 +1/5

Answer 1

0.4×0.04×0.005
=8e-5/0.1×10×0.001+1/5
=8e-6+1/5
=0.200008

Answer 2

hey mate the solution is here

(4/10*4/100*5/1000)/(1/10*10*1/1000)+1/5

=(80/1000000)/(10/10000)+1/5

=(80/1000000)*(10000/10)+1/5

=(8/100)+1/5

=2/25+1/5

=2+5/25

=7/25

I hope this helps you