Question 416896
Simplify 
{{{0.006*10^-10*200*10^8/(0.0004*30000000)}}}
= {{{6*10^-13*2*10^10/(4*10^-4*3*10^7)}}}
= {{{12*10^-3/(12*10^3)}}}
= {{{10^-6}}}
or 1E-6
or 0.000001