Odpowiedź:
2 i 3/11 : 3 i 3/4 = 25/11 : 15/4 = 25/11 * 4/15 = 20/33
1 i 1/6 : 5 i 2/8 = 7/6 : 42/8 = 7/6 * 8/42 = 4/18 = 2/9
4 i 8/15 : 6 i 4/5 = 68/15 : 34/5 = 68/15 * 5/34 = 2/3
2 i 4/13 : 2 i 1/7 = 30/13 : 15/7 = 30/13 * 7/15 = 42/39 = 1 i 3/39 = 1 i 1/13
5 i 3/13 : 8 i 1/2 = 68/13 : 17/2 = 68/13 * 2/17 = 8/13
7 i 8/15 : 2 i 3/9 = 113/15 : 21/9 = 113/15 * 9/21 = 339/105 = 3 i 24/105 = 3 i 8/35
