Odpowiedź:
zad.8
a) 6 * 3/4 = 9/2
b)2,1/3 * 3 = 7
zad.9
3 * (1,1/3 - 5/6) = 3 * (4/3 - 5/6) = 3 * (8/6 - 5/6) = 3 * 3/6 = 3/2 = 1,1/2
zad.10
doba to 24 h
2/3 doby = 2/3 * 24 = 16
