Odpowiedź:
3/5 : 4 = 3/5 * 1/4 = 3/20
4/9 : 3 = 4/9 * 1/3 = 4/27
3/7 : 5 = 3/7 * 1/5 = 3/35
7/11 : 4 = 7/11 * 1/4 = 7/44
2 i 1/3 : 3 = 7/3 * 1/3 = 7/9
3 i 2/7 : 5 = 23/7 * 1/5 = 2335
4 i 3/5 : 2 = 23/5 * 1/2 = 23/10 = 2 i 3/10
2 i 5/9 : 4 = 23/9 * 1/4 = 23/36
