Odpowiedź:
2/3 * 1/4 = 2/12 = 1/6
5/8 * 2/5 = 10/40 = 1/4
1/2 * 5/6 = 5/12
5/6 * 9/10 = 3/4
3/4 * 2 i 1/3 = 3/4 * 7/3 = 7/4 = 1 i 3/4
3 i 1/3 * 2/10 = 10/3 * 2/10 = 2/3
1 i 2/3 * 1 i 4/5 = 5/3 * 9/5 = 3
2 i 1/4 * 1 i 3/5 = 9/4 * 8/5 = 18/5 = 3 i 3/5