1) 4/9 * 27/2 = 6
2) 28/15 * 1/7 = 4/15
3) 6/7 * 1/9 = 2/21
4) 4/21 * 7/6 = 2/9
5) 8/9 * 3/10 = 4/15
6) 5/14 * 21/10 = 3/4
7) 10/3 * 6/25 = 4/5
8) 6/5 * 25/12 = 2 i 1/2
9) 4/5 * 5/6 = 2/3
10) 7/5 * 10/21 = 2/3
11) 25/12 * 8/15 = 1 i 1/9
12) 13/12 * 8/13 = 2/3
13) 21/15 * 7/25 = 49/125
14) 69/4 * 8/3 = 46
