Odpowiedź:
a )
45 min = [tex]\frac{45}{60}[/tex] h = [tex]\frac{3}{4}[/tex] h
25 min = [tex]\frac{25}{60}[/tex] h = [tex]\frac{5}{12}[/tex] h
1 s = [tex]\frac{1}{60}[/tex] min = [tex]\frac{1}{3 600}[/tex] h
15 s = [tex]\frac{15}{60}[/tex] min = [tex]\frac{1}{4}[/tex] min = [tex]\frac{1}{4} *\frac{1}{60}[/tex] h = [tex]\frac{1}{240}[/tex] h
b)
200 m = [tex]\frac{200}{1000}[/tex] km = [tex]\frac{1}{5}[/tex] km
8 m = [tex]\frac{8}{1000}[/tex] km = [tex]\frac{1}{125}[/tex] km
125 cm = [tex]\frac{125}{100}[/tex] m = [tex]\frac{5}{4}[/tex] m = [tex]\frac{5}{4} *\frac{1}{1000}[/tex] km = [tex]\frac{1}{800}[/tex] km
1 500 cm = 15 m = [tex]\frac{15}{1000}[/tex] km = [tex]\frac{3}{200}[/tex] km
Szczegółowe wyjaśnienie:
1 h = 60 min
1 min = 60 s
1 km = 1000 m
1 m = 100 cm
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Odpowiedź:
a )
45 min = [tex]\frac{45}{60}[/tex] h = [tex]\frac{3}{4}[/tex] h
25 min = [tex]\frac{25}{60}[/tex] h = [tex]\frac{5}{12}[/tex] h
1 s = [tex]\frac{1}{60}[/tex] min = [tex]\frac{1}{3 600}[/tex] h
15 s = [tex]\frac{15}{60}[/tex] min = [tex]\frac{1}{4}[/tex] min = [tex]\frac{1}{4} *\frac{1}{60}[/tex] h = [tex]\frac{1}{240}[/tex] h
b)
200 m = [tex]\frac{200}{1000}[/tex] km = [tex]\frac{1}{5}[/tex] km
8 m = [tex]\frac{8}{1000}[/tex] km = [tex]\frac{1}{125}[/tex] km
125 cm = [tex]\frac{125}{100}[/tex] m = [tex]\frac{5}{4}[/tex] m = [tex]\frac{5}{4} *\frac{1}{1000}[/tex] km = [tex]\frac{1}{800}[/tex] km
1 500 cm = 15 m = [tex]\frac{15}{1000}[/tex] km = [tex]\frac{3}{200}[/tex] km
Szczegółowe wyjaśnienie:
1 h = 60 min
1 min = 60 s
1 km = 1000 m
1 m = 100 cm