Verified answer

It's easier than you may think.

To multiply fractions, just do something like this:

(a / x) * (b / y) = (a * b) / (x * y)

So multiply the top of one fraction by the top of the other, and the bottom of one fraction by the bottom of the other.

So, that said....

To multiply (1225 pi / 8) by (1024 / 3)...

Multiply 1225 pi by 1024...

And multiply 8 by 3.

You should end up with1254400pi / 24.

Now, just divide both the top and the bottom by eight in order to simplify it.

And you wind up with...

156800pi / 3!

Hope I helped!