Odpowiedź:
2 2/5 + 1 4/5 = 3 6/5 = 4 1/5
2/3 + 1/2 = 4/6 + 3/6 = 7/6 = 1 1/6
6 3/5 + 7/10 = 6 6/10 + 7/10 = 6 13/10 = 7 3/10
Jak cos to --> 2/3 oznacza ułamek
