Complex sentence: Groves: 46 The number of women's rodeos decreased in the last decades of the twentieth century; the cost of transporting a horse hundreds of miles to compete for the small purses the WPRA offered became economically impractical.
Split into simpler sentences: Groves: 46 The number of women's rodeos decreased in the last decades of the twentieth century. The cost of transporting a horse hundreds of miles to compete for the small purses the WPRA offered became economically impractical.