Is 64 Bit ubuntu compatible with 32 bit?

[Gp.]

Is 64 Bit ubuntu compatible with 32 bit software?

[balaknair]

If you're asking whether the packages you use for 32-bit Ubuntu can be installed on 64-bit, the answer in most cases is no. Most programmes/packages are available in both 32-bit and 64-bit versions, and the 32-bit version cannot be installed on the 64-bit Ubuntu, and vice versa. You will need to install the 64-bit version of the package on the 64-bit OS. Most packages will have a 64-bit version available, and some will have 'wrapper' packages that enable the 32-bit versions to run in the 64-bit OS(though this is not a perfect solution, in most cases it works).

[jbrevik]

If you want to force the 32bit program to install on amd64 arch:

sudo dpkg --force-architecture -i <filename>.deb

[oldos2er]

Is 64 Bit ubuntu compatible with 32 bit software?

You need the package 'ia32-libs'.

[binbash]

yes it does