1) 1\9
90 / 1 * 9 = 810
2) 2/5
90/2*5 = 225
3) 2/9
90 / 2 * 9 = 405
4) 3/10
90 / 3 * 10 = 300
5) 5/6
90 / 5 * 6 = 108
6) 18\19
90 / 18 * 19 = 95
