Facebook / Instagram question

Hi Everyone,
Brand new member here. I hope y'all can get me going in the right direction!
I want to share my FB posts from my business page called Edit [Moderator]: FB business page removed to my Instagram account by the same name.
My page on FB is a "subpage" of my "main" personal account.
From what I read, it appears as though I cannot share these posts like I want to. I read that SOME pages can do this, but not all at this time.
Anyone have answer?
Thank you in advance.
Bob