Help with overlapping partitions?

Hi. Gparted has informed me that I have overlapping partitions. I have some linux experience but have not been really involved with it in a few years. I install a new distro if I have to type of involvement. I have a multi-booter so I have extended partitions. I think this complicates the sectors start and end so I really don't know how to make sense out of fdisk's out put. I am trying to get back up to speed on this and other linux tasks.

My question is, how do I tell where a partition starts and ends when there are extended partitions? Also, what does /dev/Ram mean?

Thanks for your expertise!
Fdisk output was redone. Sdc is flash drive
Code:fdisk -l
Disk /dev/ram0: 31.3 MiB, 32768000 bytes, 64000 sectors
Units: sectors of 1 * 512 = 512 bytes
Sector size (logical/physical): 512 bytes / 4096 bytes
I/O size (minimum/optimal): 4096 bytes / 4096 bytes

Disk /dev/ram1: 31.3 MiB, 32768000 bytes, 64000 sectors
Units: sectors of 1 * 512 = 512 bytes
Sector size (logical/physical): 512 bytes / 4096 bytes
I/O size (minimum/optimal): 4096 bytes / 4096 bytes

Disk /dev/ram2: 31.3 MiB, 32768000 bytes, 64000 sectors
Units: sectors of 1 * 512 = 512 bytes
Sector size (logical/physical): 512 bytes / 4096 bytes
I/O size (minimum/optimal): 4096 bytes / 4096 bytes

Disk /dev/ram3: 31.3 MiB, 32768000 bytes, 64000 sectors
Units: sectors of 1 * 512 = 512 bytes
Sector size (logical/physical): 512 bytes / 4096 bytes
I/O size (minimum/optimal): 4096 bytes / 4096 bytes

Disk /dev/ram4: 31.3 MiB, 32768000 bytes, 64000 sectors
Units: sectors of 1 * 512 = 512 bytes
Sector size (logical/physical): 512 bytes / 4096 bytes
I/O size (minimum/optimal): 4096 bytes / 4096 bytes

Disk /dev/ram5: 31.3 MiB, 32768000 bytes, 64000 sectors
Units: sectors of 1 * 512 = 512 bytes
Sector size (logical/physical): 512 bytes / 4096 bytes
I/O size (minimum/optimal): 4096 bytes / 4096 bytes

Disk /dev/ram6: 31.3 MiB, 32768000 bytes, 64000 sectors
Units: sectors of 1 * 512 = 512 bytes
Sector size (logical/physical): 512 bytes / 4096 bytes
I/O size (minimum/optimal): 4096 bytes / 4096 bytes

Disk /dev/ram7: 31.3 MiB, 32768000 bytes, 64000 sectors
Units: sectors of 1 * 512 = 512 bytes
Sector size (logical/physical): 512 bytes / 4096 bytes
I/O size (minimum/optimal): 4096 bytes / 4096 bytes

Disk /dev/ram8: 31.3 MiB, 32768000 bytes, 64000 sectors
Units: sectors of 1 * 512 = 512 bytes
Sector size (logical/physical): 512 bytes / 4096 bytes
I/O size (minimum/optimal): 4096 bytes / 4096 bytes

Disk /dev/ram9: 31.3 MiB, 32768000 bytes, 64000 sectors
Units: sectors of 1 * 512 = 512 bytes
Sector size (logical/physical): 512 bytes / 4096 bytes
I/O size (minimum/optimal): 4096 bytes / 4096 bytes

Disk /dev/ram10: 31.3 MiB, 32768000 bytes, 64000 sectors
Units: sectors of 1 * 512 = 512 bytes
Sector size (logical/physical): 512 bytes / 4096 bytes
I/O size (minimum/optimal): 4096 bytes / 4096 bytes

Disk /dev/ram11: 31.3 MiB, 32768000 bytes, 64000 sectors
Units: sectors of 1 * 512 = 512 bytes
Sector size (logical/physical): 512 bytes / 4096 bytes
I/O size (minimum/optimal): 4096 bytes / 4096 bytes

Disk /dev/ram12: 31.3 MiB, 32768000 bytes, 64000 sectors
Units: sectors of 1 * 512 = 512 bytes
Sector size (logical/physical): 512 bytes / 4096 bytes
I/O size (minimum/optimal): 4096 bytes / 4096 bytes

Disk /dev/ram13: 31.3 MiB, 32768000 bytes, 64000 sectors
Units: sectors of 1 * 512 = 512 bytes
Sector size (logical/physical): 512 bytes / 4096 bytes
I/O size (minimum/optimal): 4096 bytes / 4096 bytes

Disk /dev/ram14: 31.3 MiB, 32768000 bytes, 64000 sectors
Units: sectors of 1 * 512 = 512 bytes
Sector size (logical/physical): 512 bytes / 4096 bytes
I/O size (minimum/optimal): 4096 bytes / 4096 bytes

Disk /dev/ram15: 31.3 MiB, 32768000 bytes, 64000 sectors
Units: sectors of 1 * 512 = 512 bytes
Sector size (logical/physical): 512 bytes / 4096 bytes
I/O size (minimum/optimal): 4096 bytes / 4096 bytes

Disk /dev/sda: 149.1 GiB, 160041885696 bytes, 312581808 sectors
Disk model: MAXTOR STM316081
Units: sectors of 1 * 512 = 512 bytes
Sector size (logical/physical): 512 bytes / 512 bytes
I/O size (minimum/optimal): 512 bytes / 512 bytes
Disklabel type: dos
Disk identifier: 0x4f234f23

Device Boot Start End Sectors Size Id Type
/dev/sda1 * 2048 87008039 87005992 41.5G 83 Linux
/dev/sda4 87008101 312580095 225571995 107.6G 5 Extended
/dev/sda5 87008103 92116709 5108607 2.4G 82 Linux swap / Solaris
/dev/sda6 92116773 143315864 51199092 24.4G 83 Linux
/dev/sda7 143319040 198611594 55292555 26.4G 83 Linux
/dev/sda8 198612992 312580095 113967104 54.4G 83 Linux

Disk /dev/sdb: 465.8 GiB, 500107862016 bytes, 976773168 sectors
Disk model: Hitachi HDP72505
Units: sectors of 1 * 512 = 512 bytes
Sector size (logical/physical): 512 bytes / 512 bytes
I/O size (minimum/optimal): 512 bytes / 512 bytes
Disklabel type: dos
Disk identifier: 0x000d3a7b

Device Boot Start End Sectors Size Id Type
/dev/sdb1 * 1012095 148472729 147460635 70.3G 83 Linux
/dev/sdb4 4095 476230859 476226765 227.1G 5 Extended
/dev/sdb5 * 4096 1012094 1007999 492.2M 83 Linux
/dev/sdb6 234569728 353353727 118784000 56.7G 83 Linux
/dev/sdb7 353355776 476230859 122875084 58.6G 83 Linux
/dev/sdb8 148477952 153597951 5120000 2.5G 82 Linux swap / Solaris

Partition table entries are not in disk order.

Disk /dev/sdc: 7.5 GiB, 7998537728 bytes, 15622144 sectors
Disk model: DataTraveler G3
Units: sectors of 1 * 512 = 512 bytes
Sector size (logical/physical): 512 bytes / 512 bytes
I/O size (minimum/optimal): 512 bytes / 512 bytes
Disklabel type: dos
Disk identifier: 0x6f869649

Device Boot Start End Sectors Size Id Type
/dev/sdc1 * 0 3768319 3768320 1.8G 0 Empty
/dev/sdc2 172 21887 21716 10.6M ef EFI (FAT-12/16/32)
/dev/sdc3 21888 67407 45520 22.2M 0 Empty