Using another phone's GPS signal as location

I have an android phone (Device A), and an android tablet (Device B). Device B has a decent GPS, but Device A's is pretty much unusable. I would like to use Device A for navigation, but to do so I need a GPS quality only Device B has. Is it possible to make Device A accept Device B's location as an external GPS signal (i.e. with the usage of mock location) while none of them being rooted? If not, does rooting Device A help? *I am interested in a general answer, but also in a more device-specific one if it is better: Device A: Prestigio 5517; Android 4.4 Device B: Samsung Galaxy Tab 8.4 WiFi; Android 5.0*