(3 5/18 - 7 1/12 + 2 2/9) * (2,448 : 1,2) = (3 10/36 - 7 3/36 + 2 8/36) * 2,04 = (- 3 29/36 + 2 8/36) * 2,04 = - 1 21/36 * 2,04 = - 1 7/12 * 2,04 = - 1 7/12 * 204/100 = - 1 7/12 * 2 4/100 = - 1 7/12 * 2 1/25 = - 19/12 * 51/25 = - 323/100 = - 3 23/100 = - 3,23.