Assuming you want the expression to be simplified.
We begin with the following:
![5^{2} * 3^{-1} * \frac{5^-3}{3^{4}} * 5^{-1} * 3^{-3}](https://tex.z-dn.net/?f=5%5E%7B2%7D%20%2A%203%5E%7B-1%7D%20%2A%20%5Cfrac%7B5%5E-3%7D%7B3%5E%7B4%7D%7D%20%2A%205%5E%7B-1%7D%20%2A%203%5E%7B-3%7D%20)
Simplify the first part,
![5^{2}](https://tex.z-dn.net/?f=%205%5E%7B2%7D%20)
. That is 25. Now we have this:
Next, simplify
![3^{-1}](https://tex.z-dn.net/?f=3%5E%7B-1%7D)
, which is 1/3, and get this:
The next part is
![\frac{5^-3}{3^{4}}](https://tex.z-dn.net/?f=%5Cfrac%7B5%5E-3%7D%7B3%5E%7B4%7D%7D)
. Simplify the denominator,
![3^{4}](https://tex.z-dn.net/?f=%20%203%5E%7B4%7D)
, which is 81. Simplify the numerator, which is 1/125. Then divide 1/125 by 81, which we will keep as a fraction for simplicity's sake, but simplify it to
![\frac{1}{10125}](https://tex.z-dn.net/?f=%5Cfrac%7B1%7D%7B10125%7D)
. Now we have:
![25* 1/3 * \frac{1}{10125} * 5^{-1} * 3^{-3}](https://tex.z-dn.net/?f=25%2A%201%2F3%20%2A%20%5Cfrac%7B1%7D%7B10125%7D%20%2A%205%5E%7B-1%7D%20%2A%203%5E%7B-3%7D)
Now simplify
![5^{-1}](https://tex.z-dn.net/?f=%205%5E%7B-1%7D)
, which is 0.2, or 1/5. Now we have:
Finally, simplify
![3^{-3}](https://tex.z-dn.net/?f=3%5E%7B-3%7D)
. That is 1/27. We have:
![25* 1/3 * \frac{1}{10125} * 0.2 * 1/27](https://tex.z-dn.net/?f=25%2A%201%2F3%20%2A%20%5Cfrac%7B1%7D%7B10125%7D%20%2A%200.2%20%2A%201%2F27)
Lastly, multiply them all together! Now we are done, with the product of:
![\frac{1}{6075}](https://tex.z-dn.net/?f=%20%5Cfrac%7B1%7D%7B6075%7D%20)
That certainly did take a while to type in all the LaTex, so I really hope that helped!
Note- if anything isn't working with the LaTex, just tell me and I'll fix it! (: