Cześć!
Przelicznik
[tex]1\%=0,01[/tex]
a)
[tex]18\%=18\cdot0,01=\boxed{0,18}[/tex]
b)
[tex]2,8\%=2,8\cdot0,01=\boxed{0,028}[/tex]
c)
[tex]0,56\%=0,56\cdot0,01=\boxed{0,0056}[/tex]
d)
[tex]212\%=212\cdot0,01=\boxed{2,12}[/tex]
Odpowiedź:
18% = 18 : 100 = 0,18 = 18/100 = 9/50
2,8 % = 2,8 : 100 = 0,028 = 28/1000 = 14/500 = 7/250
0,56 % = 0,56 : 100 = 0,0056 = 56/10000 = 28/5000 = 14/2500 = 7/1250
212 % = 212 : 100 = 2,12 = 2 i 12/100 = 2 i 6/50 = 2 i 3/25