Fedora Installation :: 30 GB LVM Partition By Just Resizing Part Of The Volume?

I have been using Ubuntu for about a year and I decided to switch to Fedora just to see how it goes with getting everything in my system working again. I would say that with Ubuntu and Fedora installations I have installed and reinstalled 15 times, which I mention because I am not new to installing linux. I have used GParted to partition and resize my HD numerous times and reinstalled linux on a partition and so on. I know how to do all of that without any problems.

NOW HERE IS WHAT HAPPENED... I installed Fedora on my Desktop which I had partitioned into a 190 GB partition onto which Windows is installed and then I had another 30 GB partition onto which I chose to install Fedora. I chose the "replace existing Linux systems" in anaconda... and what resulted was a 30 GB partition with Fedora that is now showing up as LVM. I have never seen an LVM partition and I am not sure if I can use GPARTED to resize it without destroying it. I have used GPARTED to resize Linux partitions before, but they were never showing up as LVM. The forums on GPARTED only show info from about a year or two ago.

Here is what I want to do (and reading around on forums doesn't really give a good explanation of whether it is possible)... Is it possible to install Linux Mint into that 30 GB Fedora LVM partition by just resizing the Fedora part of the volume? So, the question is this: How can I resize the Fedora part of the LVM volume and then install Mint into that LVM partition?

If Fedora was on an ordinary 30 GB partition I would have no problem with using GPARTED to chop that in half and then use the 15 GB I freed up to install Mint. I just don't want to destroy the Fedora stuff by messing around the with the LVM partition so I would like to hear from others who have worked around this issue and please don't link to the ordinary LVM howto's you get through a simple google search as I have already read them and I don't find them too illuminating.