5/9(3,6а-3 целых 3/5в) -3,5(4/7а-0,2в)
5/9 (3.6a - 3(3/5)v) - 3.5 (4/7a - 0.2v)5/9 (3.6a - 1.8v) - 3.5 (4/7a - 0.2v)(2/3)a - 1(0.5)v - 3.5 * (4/7a - 0.2v)(2/3)a - 0.5v - (14/7)a + 0.7v(2/3 - 14/7)a - 0.5v + 0.7v(14/21 - 18/21)a + 0.2v-4/21a + 0.2v
5/9(3,6а-3 целых 3/5в) -3,5(4/7а-0,2в)
5/9 (3.6a - 3(3/5)v) - 3.5 (4/7a - 0.2v)
5/9 (3.6a - 1.8v) - 3.5 (4/7a - 0.2v)
(2/3)a - 1(0.5)v - 3.5 * (4/7a - 0.2v)
(2/3)a - 0.5v - (14/7)a + 0.7v
(2/3 - 14/7)a - 0.5v + 0.7v
(14/21 - 18/21)a + 0.2v
-4/21a + 0.2v