Me and my simple questions: Can I do this in FPGA?

Hey I have found this library for fixed point operations “fixed_float_types.vhdl”, “fixed_generic_pkg.vhdl”, “fixed_generic_pkg-body.vhdl”,

and “fixed_pkg.vhdl”.

I might just declare values directly at binary in integer.decimal format and perform the operations normally with + and *

My question however if this kind of "libraries" are synthesizable and quartus II can work with them without problems. I know for example that the "/" division can be used in quartus II, but it won't synthesize in the FPGA, correct?