Simplify. Express your answer as a single fraction in simplest form.
(9v)/ (5v–2)– (v)/(10v–4)
(9v(10v-4) - v(5v-2))/(5v-2)(10v-4)
(90v^2 - 36v -5v^2 + 2v)/(50v^2 - 20v - 20v + 8)
(85v^2 - 34v)/(50v^2 - 40v + 8)
(17v(5v-2))/(10v(5v-4) + 8)
(17(5v-2))/((10v+8) × v)
(17(5v-2))/(v(10v + 8))
(85v - 34)/(10v^2 + 8v)