For 32 bit systems
#wget http://download.documentfoundation.org/libreoffice/stable/5.0.4/rpm/x86/LibreOffice_5.0.4_Linux_x86_rpm.tar.gz
For 64-bit systems
#wget http://download.documentfoundation.org/libreoffice/stable/5.0.4/rpm/x86_64/LibreOffice_5.0.4_Linux_x86-64_rpm.tar.gz
After this all steps are common
#tar -xvf LibreOffice_5.0.4_Linux_x86_rpm.tar.gz
#cd LibreOffice_5.0.4.2_Linux_x86_rpm/
#yum localinstall RPMS/*.rpm
You can use these steps in any other RPM based distribution but keeping in mind the last step (that command will vary according to the distribution)