Odpowiedź:
6/7 : 3/14 = 6/7 * 14/3 = 12/3 = 4
1 i 4/5 * 5/9 = 9/5 * 5/9 = 1
2 i 1/10 + 3/5 = 2 i 1/10 + 6/10 = 2 i 7/10
16 i 1/5 - 1 i 1/6 * 4,8 = 16 i 1/5 - 1 i 1/6 * 4 i 8/10 = 16 i 1/5 - 7/6 * 48/10 = 16 i 1/5 - 56/10 - 16 i 1/5 - 5 i 6/10 = 16 i 2/10 - 5 i 6/10 = 15 i 12/10 - 5 i 6/10 = 10 i 6/10 = 10 i 3/5