My used storage and available storage together are not mathematically possible

[Lucia Venegas]

My phone says that I have used 12.07 gigs, that I have 24.49 total, and 4.22 available. That should leave about 12 gigs available, not 4 1/4. I have a Motorola G5+, just installed a new update on April 25 2018.

 

[Thacy]

My phone says that I have used 12.07 gigs, that I have 24.49 total, and 4.22 available. That should leave about 12 gigs available, not 4 1/4. I have a Motorola G5+, just installed a new update on April 25 2018.

The operating system takes a lot of GB, which is over 6 GB on my phone.

 

[acejavelin]

The Android OS isn't a factor here, Moto already takes that into account which is why I have 53.71GB available and not 64GB...

OP's discrepancy is quite a bit, but this is usually cache space.

Go to Settings - Storage and look there, should see something like 28.xxGB used out of 32GB. Then in Internal Shared Storage and you will see a breakdown of use and can clear app cache (not this is app cache and not the cache partition).

Moto File Manager has some neat tools for looking at storage and getting info too.