Question 135574
Your problem, as written, is a bit confusing:
Your first line shows:
{{{(4.2*10^6)/(7*10^8)}}}
While your second line shows:
{{{4.2*10^(-6) = 0000.042}}} It isn't! It should be: 0.0000042
But did you mean to write: {{{4.2*10^6}}} or {{{4.2*10^(-6)}}}?
I will assume the latter, so...
{{{(4.2*10^(-6))/(7*10^8) = (4.2/7)*10^(-14)}}}={{{0.6*10^(-8) = 6.0*10^(-9)}}}