A lot of good info already touching on some of the differences and accounting for athletics is mostly a questionable exercise where you aren't comparing apples to apples.
UND at least makes an effort to try to balance out their spending on men's and women's, particularly on the scholarship side.
UND enrollment is 51.8% M / 48.2% F, unduplicated participation is 53.2% / 46.8% and financial aid is 53.6% / 46.4%
NDSU enrollment is 49.8% M / 50.2% F, unduplicated participation is 63.8% / 36.2% and financial aid is 62.2% / 37.8% (before additional football scholarships).
UND also spends about $3 million more on women's sports than NDSU does (for a variety of reasons), but also offer more individuals opportunities to participate, which drives a higher cost that needs to be subsidized as they are mostly non-revenue generating.
Some others who have better knowledge of it than I do can elaborate on how (un)serious NDSU actually takes their Title IX compliance.
After some less than positive press, the Fargo media had their practice and other access cut.
Things fell in line after that and haven't changed.