This may be the wrong place to ask this and if so I'm sorry. I had installed BL 5 along side Windows (my wife uses it) on a laptop for use as a backup for both of us. Then I installed BL 6 and now I have 3 partitions. Is there a way to remove one of the Linux's without doing any serious damage?
No. If you remove a partition, all data on it is lost (without advanced recovery methods).
If you're asking if you can put two linux's on the same partition, the answer is normally no, and pretty sure that applies to Bodhi.
You could copy all the data you care about from one partition to another of course then delete it, but it wouldn't be bootable if you removed it. Or resize if you don't like the sizes you selected during installation...
Thanks for that but I have no data I want to keep. Right now there are 3 partitions: Windows, BL5, and BL6. If possible I want to delete BL5 and use the space for BL6, keeping Windows and BL6 as bootable when it's done.
You can remove the bodhi 5 partition using bodhi 6 easily enough with gparted.
sudo apt install gparted
Of course make sure you remove the correct partition! It wont let you remove the one you're running on anyway, so the only one you care about at disk is windows if you clicked the wrong thing, and pretty sure you'll see the difference by volume label or size or something will make it obvious which is which.