zad 12 str 58 kl 7 przyklad f,g,h


Zad 12 Str 58 Kl 7 Przyklad Fgh class=

Odpowiedź :

f) (3/10 + 2/3) / (5/10 - 2/10) = (9/30 - 20/30) / (3/10) = -(11/30) / (3/10) = -(11/30) / (9/30) = -(11/9)

g) (-7 - 4 * (-2)) / (10-5) = 1/5

h)  [(-8) / (-9)] * (-3) = 8/9 * (-3) = -(24/9) = -(2 i 2/3)