Odpowiedź :
Odpowiedź:
A).
a.25% =[tex]\frac{25}{100}[/tex] =[tex]\frac{1}{4}[/tex]
25:5=5
100:5=20
5:5=1
20:5=4
b. 120% = [tex]\frac{120}{100}[/tex] = [tex]\frac{6}{5}[/tex]
120:5=24
100:5=20
24:4=6
20:4=5
c.
40% =[tex]\frac{40}{100}[/tex] =[tex]\frac{2}{5}[/tex]
40:5=8
100:5=20
8:4=2
20:4=5
B)
a.45,5%= [tex]\frac{45.5}{100}=\frac{455}{1000}[/tex] [tex]=\frac{91}{200}[/tex]
455:5=91
1000:5=200
b. 66 2/3% = ·[tex]66\frac{2}{3} =\frac{200}{3} =\frac{200}{3x100}=\frac{200}{300} =\frac{2}{3}[/tex]
200:5=40
300:5=60
40:4=10
60:4=15
10:5=2
15:5=3
c. 3,2% = [tex]\frac{3,2}{100} = \frac{32}{1000} =\frac{16}{500} =\frac{8}{250} =\frac{4}{125}[/tex]
C)
0,05= [tex]\frac{5}{100}[/tex] = 5%
0,78 = [tex]\frac{78}{100}[/tex] = 78%
1,39 =[tex]\frac{139}{100}[/tex] = 139%
D)
7/8
100:8=12,5x7=87,5%
1/6
100:6= 16,66x1=16,66%=16,7%
1 13/15
1=100%
100:15= 6,66
6,66x13=86,66%
100+86,66%= 186,66%=186,7%
Szczegółowe wyjaśnienie:
mam nadzieje że sie nie pomyliłem ;)