Wystarczy pomnożyć każdą liczbę przez 100% (czyli 1)

 

$a)$

$\frac{5}{8}=\frac{5}{8}\cdot 100\%=\frac{500}{8}\%=\frac{250}{4}\%=\frac{125}{2}\%=62,5\%$

$\frac{3}{5}=\frac{3}{5}\cdot 100\%=\frac{300}{5}\%=60\%$

$\frac{1}{2}=\frac{1}{2}\cdot 100\%=50\%$

$\frac{11}{20}=\frac{11}{{\sout{20}}^1}\cdot {\sout{100}}^5\%=55\%$ $\frac{11}{20}=\frac{11}{{\sout{20}}^1}\cdot {\sout{100}}^5\%=55\%$

$\frac{7}{10}=\frac{70}{100}=70\%$

 

 

$b)$

$\frac{1}{3}=\frac{1}{3}\cdot 100\%=\frac{100}{3}\%=33\frac{1}{3}\%$

$\frac{1}{6}=\frac{1}{6}\cdot 100\%=\frac{100}{6}\%=\frac{50}{3}\%=16\frac{2}{3}\%$

$\frac{8}{9}=\frac{8}{9}\cdot 100\%=\frac{800}{9}\%=88\frac{8}{9}\%$

$\frac{1}{7}=\frac{1}{7}\cdot 100\%=\frac{100}{7}\%=14\frac{2}{7}\%$

$\frac{5}{12}=\frac{5}{12}\cdot 100\%=\frac{500}{12}\%=\frac{250}{6}\%=\frac{125}{3}\%4=41\frac{2}{3}\%$

 

 

$c)$

$1\frac{2}{3}=\frac{5}{3}=\frac{5}{3}\cdot 100\%=\frac{500}{3}\%=166\frac{2}{3}\%$

$2\frac{5}{8}=2\frac{5}{8}\cdot 100\%=200\frac{500}{8}\%=200\%+62\frac{4}{8}\%=262\frac{1}{2}\%$

$3\frac{4}{9}=3\frac{4}{9}\cdot 100\%=300\frac{400}{9}\%=300\%+44\frac{4}{9}\%=344\frac{4}{9}\%$

$4\frac{1}{6}=4\frac{1}{6}\cdot 100\%=400\frac{100}{6}\%=400\%+16\frac{4}{6}\%=416\frac{2}{3}\%$

$1\frac{4}{5}=\frac{9}{5}=\frac{9}{5}\cdot 100\%=\frac{900}{5}\%=180\%$