Finding xPath to a price value on a website and import value to Google Sheet

All my attempts for importing the values of "BTC/CAD BUY Price" and "BTC/CAD SELL Price" from this page into Google Sheet failed. I was trying to use IMPORTXML() function. I also tried to use x-Path Helper and Selector Gadget extensions for Chrome. They generated valid x-path results but their x-path codes did not import the price into Google Sheet. Also spent a lot of time on this x-path tutorial, but still didn’t get the result.
Here is a sample Google Sheet showing what I want to do.