1 + 1/3 = 1 1/3
1 1/3 + 1/6 = 1 2/6 + 1/6 = 1 3/6 = 1 1/2
1 1/2 + 1/2 = 2
2 + 1/3 = 2 1/3
2 1/3 + 1/6 = 2 2/6 + 1/6 = 2 3/6
2 3/6 + 1/2 = 2 3/6 + 3/6 = 3
3 + 1/3 = 3 1/3
3 1/3 + 1/6 = 3 2/6 + 1/6 = 3 3/6 = 3 1/2
3 1/2 + 1/2 = 4
Zadanie z grzybami.
1 - całość
1 - 2/5 - 1/3 = 1 - 6/15 - 5/15 = 4/15
Bartek zebrał 4/15 grzybów.