Centos 7 Managing free space from CLI

I have a question regarding managing free or "unallocated" space in an LVM setup on CentOS. What i need to do is make /var bigger, to accommodate some additional VM's that i am creating. 1. I would need to claim some of that free space Edit #1: here is the output from fdisk /dev/sda. I don't have a complete understanding of the Start /End /Blocks, but being that as it is, I still don't see the free space that should be available [root@physical ~]# fdisk /dev/sda Welcome to fdisk (util-linux 2.23.2). Changes will remain in memory only, until you decide to write them. Be careful before using the write command. Command (m for help): p Disk /dev/sda: 1000.2 GB, 1000204886016 bytes, 1953525168 sectors Units = sectors of 1 * 512 = 512 bytes Sector size (logical/physical): 512 bytes / 512 bytes I/O size (minimum/optimal): 512 bytes / 512 bytes Disk label type: dos Disk identifier: 0x0004cb56 Device Boot Start End Blocks Id System /dev/sda1 * 2048 1026047 512000 83 Linux /dev/sda2 1026048 448595967 223784960 8e Linux LVM /dev/sda3 448598016 546254265 48828125 83 Linux > Edit #2 OK so now I can see the space is there in parted! Wonderful and thank you!! Now my question is, what would I have to do to actually grab some of this space to use it? I am assuming whatever I grab, in my exact scenario would now be called ***/dev/sda4***. Would you be able to guide me on claiming 100GB from this free space? Thanks so much! [root@physical ~]# parted /dev/sda (parted) print free Model: ATA ST31000340NS (scsi) Disk /dev/sda: 1000GB Sector size (logical/physical): 512B/512B Partition Table: msdos Disk Flags: Number Start End Size Type File system Flags 32.3kB 1049kB 1016kB Free Space 1 1049kB 525MB 524MB primary xfs boot 2 525MB 230GB 229GB primary lvm 230GB 230GB 1049kB Free Space 3 230GB 280GB 50.0GB primary 280GB 1000GB 721GB Free Space