How do I position a frame on another frame?

I have a health bar, and it’s AbsolutePosition displays over 100. I want to position other frames onto this bar, how can I do this?

Whenever I set the frame to

UDim2.new(0,healthbar.AbsolutePosition.X,0,healthbar.AbsolutePosition.Y) 

it positions the frame off screen.

By any chance, are any of your GuiObjects using AnchorPoints?

Perhaps you might want to try this script?

UDim2.new(
    0, healthbar.AbsolutePosition.X + healthbar.AbsoluteSize.X / healthbar.AnchorPoint.X,
    0, healthbar.AbsolutePosition.Y + healthbar.AbsoluteSize.Y / healthbar.AnchorPoint.Y
) 

It’s fine I just made a 2nd bar but made it invisible and i used scaling positioning and plopped the slider inside the bar