I have LR 6.0.1 on an iMac desktop since I upgraded about 9 months ago. I still have LR 5.7 on my Mac laptop. How can I upgrade the Laptop application to 6.0.1 also?

The Adobe license allows 2 activations, so you would just copy your version 6 INSTALL files to your other computer and install the upgrade the same way you did on your desktop

Download & Install instructions https://forums.adobe.com/thread/2003339 may help

-includes a link to go to a page to download Adobe programs if you don't have a disc or drive

-or kglad links in reply #1 here https://forums.adobe.com/thread/2017859 may help

Also go to https://forums.adobe.com/community/creative_cloud/creative_cloud_faq

-and also read https://forums.adobe.com/thread/1146459