pomocy! daje naj!!! na jutro 2/3 + 2/9 3/4 + 5/12 2 1/3 + 1 3/5 + 5 4/7 2/3 - 5/9 5/6-3/8 1 1/8 -3/5 6 1/7- 2 2/3 3 1/12 + 1 5/18