OK, again using the default browser ...
On my tablet, at the right hand side of the address bar there are three symbols going from left to right - a star, a magnifying glass and a star on what looks like a book marker.
Touch the star on a book marker and that will take you to a screen where you can access your bookmarks, history and saved pages. Touch the saved pages at the top of the screen to see the ones you have saved, then touch and hold the one you want to delete. A menu will pop up with an option to delete the page.