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Coolmath Pre-Algebra
Decimals Lesson 10 - How to Divide a Decimal by a Decimal
(page 1 of 2)

---- This pre-algebra lesson explains how to divide a decimal by a decimal.

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So, how do we do a decimal division problem like 6.85 divided by .5?

Well, we already know how to divide a decimal by a whole number -- and it was pretty easy....

So, let's just turn these problems into the easy kind!

How do we do that?  It looks like it's just a trick...  But, I'll show you why it works!

Let's divide 6.85 by .5

Set it up:

6.85 divided by .5

Move the decimals to the right on both until you are dividing BY a whole number:

moving the decimal points over in the problem 6.85 divided by .5 turns the problem into 68.5 by 5

Now, go for it!

long division work for the problem 6.85 divided by .5...  So, 6.85 divided by .5 = 13.7

>> Remember, you can check this by multiplying

13.7 x .5

Continued on the next page

 The printing and distribution and/or downloading of these lessons is strictly prohibited.

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