Inverted page tables are primarily used to

Reduce the overhead of maintaining multiple page tables.In a traditional paging system, each process has its own page table, which can consume a significant amount of physical memory as the number of processes increases. An Inverted Page Table contains only one entry for each real page (frame) in physical memory. This drastically reduces the amount of memory needed to store page tables, as it is proportional to the size of physical memory rather than the number of processes or the virtual address space.