Odpowiedź:
zad.1
a)
[tex] \frac{1}{2} \times 100\% = \frac{100\%}{2} \ = 50\% \\ \frac{2}{5} \times 100\% = \frac{200\%}{5} = 40\% \\ \frac{3}{25} \times 100\% = \frac{300\%}{25} = 12\% \\ \frac{7}{50} \times 100\% = \frac{700\%}{50} = 14\% \\ \frac{3}{8} \times 100\% = \frac{300\%}{8} = 37 \frac{1}{2} \%[/tex]
b)
[tex]0.14 \times 100\% = 14\% \\ 3.2 \times 100\% = 320\%\\ 4 \times 100\% = 400\% \\ 0.05 \times 100\% = 5\% \\ 42.5 \times 100\% = 4250\% \\ 0.6 \times 100\% = 60\%[/tex]
zad.2
a)
[tex]12\% \times \frac{1}{100} = \frac{12}{100} = \frac{3}{25} \\ 3\% \times \frac{1}{100} = \frac{3}{100} \\ 136\% \times \frac{1}{100} = \frac{136}{100} = 1 \frac{9}{25} [/tex]
b)
[tex]2.3\% \times \frac{1}{100} = \frac{23}{1000} \\ 0.7\% \times \frac{1}{100} = \frac{7}{1000} [/tex]
c)
[tex] \frac{7}{8}\% \times \frac{1}{100} = \frac{7}{800} \\ \frac{11}{20}\% \times \frac{1}{100} = \frac{11}{2000} [/tex]
