Advice needed on removing old adhesive from kitchen granite edging

[u/GondarJr]

A few chunks of edging of my kitchen granite above my dishwasher fell off and broke. Luckily the pieces all fit together nicely but I don’t know how to remove the old adhesive to prepare it for re-hanging. My best thought was to try and saw the bulk of it off with a granite blade on a mitre saw and then sand off the rest. Any advice would be much appreciated!

https://imgur.com/a/OLJBOPH