Odpowiedź:
Zad. 1
b) 9/25 = 36/100 = 36%
Zad. 2
a) 9/20 = 45/100= 45%
b) 8/20 = 40/100 = 40%
Zad. 3
• 6/30 = 1/5 = 20%
• 54/60 = 9/10 = 90% 100%-90%=10%
zad. 4
9/12. 12 /30. 4/20