Question 1154346
<pre>
9 × 10<sup>-8</sup>
--------
3 × 10<sup>-12</sup>


Move the 10<sup>-12</sup> from the bottom to the top 
as 10<sup>12</sup>


9 × 10<sup>-8</sup> × 10<sup>12</sup>
---------------
3 


Divide the 9 by the 3, combine the exponents of 10


3 × 10<sup>4</sup>


Move the invisible decimal after the 3, 


3. × 10<sup>4</sup>


4 places to the right and erase the power of 10:


30000.


And make the decimal invisible:

30000

So 9 x 10<sup>-8</sup> is 30,000 (thirty thousand) times larger 
than 3 x 10<sup>-12</sup>.

Edwin</pre>