Hello Seeked,
You could try to mount them through the disk utility palimpsest.
or
If you are not using LVM you could try something like :
Code:
su -
cryptsetup luksOpen /dev/DEVICENAME luks-fedora
mkdir /mnt/luks-fedora
mount /dev/mapper/luks-fedora /mnt/luks-fedora
replace DEVICENAME with your device's path.