basically you will re-format your sd card as adoptable storage.
https://help.republicwireless.com/h...etween-Portable-Storage-and-Internal-Storage-

keep in mind though if you go this route. once formatted, the sd card will now become part of the phones storage and you will not be able to remove the card or risk your data on the card to be corrupted. also by doing this you will over time create more wear and tear on the card as every action performed on the phone, the phone will have to read and write from the card. this will cause the card to wear out faster than normal.....increasing the risk of the card getting corrupted or even failing. the unfortunate thing is that you will not be able to backup the card anymore.

also by re-formatting the card will wipe anything that is already on it.....make sure that you backup the card first before re-formatting it.

 

moving apps that way only moves a small portion of the app to the sd card. it really does not save all that much room.