Odpowiedź:
3/4 : 5/7 = 3/4 * 7/5 = 21/20 = 1 i 1/20 E
3/5 : 2/9 = 3/5 * 9/2 = 27/10 = 2 i 7/10 K
4 : 5/3 = 4 * 3/5 = 12/5 = 2 i 2/5 T
5/9 : 3/11 = 5/9 * 11/3 = 55/27 = 2 i 1/27 E
5/7 : 4 = 5/7 * 1/4 = 5/28 P
7 : 3/4 = 7 * 4/3 = 28/3 = 9 i 1/3 A
7/9 : 5/8 = 7/9 * 8/5 = 56/45 = 1 i 11/45 R
5/13 : 3 = 5/13 * 1/3 = 5/39 O