1) 43 * 0.12 = 5.16
2) 2.15 / (14 1/3) * 100 = 3 / 20 * 100 = 15
4) 1200 / 1600 * 100 = 75%
5) 125 = 100%
25 = 20% => 100 - 20 = 80%
6) 39 / 130 * 100 = 30%
7) 12,3 * 2 / 5 = 4.92
4.92 / 3 * 8 = 13.12
8) 24(2/3) * 12 / 100 = 2 (24/25)
(74/25) / 20 * 100 = 14.8