$45\min =\frac{45}{60}h=\frac{3}{4}h$  
$75\min =\frac{75}{60}h=1\frac{15}{60}h=1\frac{1}{4}h$  

$25\min =\frac{25}{60}h=\frac{5}{12}h$ $25\min =\frac{25}{60}h=\frac{5}{12}h$  

  $20\min =\frac{20}{60}h=\frac{1}{3}h$  
$50\min =\frac{50}{60}h=\frac{5}{6}h$  

$33\min =\frac{33}{60}h=\frac{11}{20}h$  

$10\min =\frac{10}{60}h=\frac{1}{6}h$  

$30\min =\frac{30}{60}h=\frac{1}{2}h$  

$66\min =\frac{66}{60}h=\frac{11}{10}h=1\frac{1}{10}h$  

$40\min =\frac{40}{60}h=\frac{2}{3}h$  

$15\min =\frac{15}{60}h=\frac{1}{4}h$  

$6\min =\frac{6}{60}h=\frac{1}{10}h$  

MINUTY:    30 min      20 min      40 min      15 min      45 min      6 min

LITERA:        L               A              W             I                N             A