Complex sentence: The M-84 designation was reused for a section of the former M-31 in The Thumb; it ran from M-81 near Reese running through Fairgrove and Akron to M-29 at Unionville.
Split into simpler sentences: The M-84 designation was reused for a section of the former M-31 in The Thumb. It ran from M-81 near Reese running through Fairgrove and Akron to M-29 at Unionville.