# How do you simplify and write #(1.0times10^-15)/(4.2times10^-7)# in scientific notation?

##### 1 Answer

Jul 27, 2016

#### Answer:

#### Explanation:

How I usually answer questions like this I ignore the exponents first and divide the numbers as usual

Now I take care of the exponents since we're dividing you subtract the exponents

So now we have

We have to move the decimal back to make it proper scientific notation, so the answer is