Explicație pas cu pas:
[tex]a) \frac{11}{12} - \frac{1}{6} = \frac{11 - 2}{12} = \frac{9}{12} = \frac{3}{4} [/tex]
[tex]b) \frac{5}{36} - \frac{1}{9} = \frac{5 - 4}{36} = \frac{1}{36} [/tex]
[tex]c) \frac{19}{20} - \frac{4}{5} = \frac{19 - 16}{20} = \frac{3}{20} [/tex]
[tex]d) \frac{5}{7} - \frac{3}{14} = \frac{10 - 3}{14} = \frac{7}{14} = \frac{1}{7} [/tex]
[tex]e) \frac{20}{63} - \frac{2}{9} = \frac{20 - 14}{63} = \frac{6}{63} = \frac{2}{21} [/tex]
[tex]f) \frac{11}{24} - \frac{5}{12} = \frac{11 - 10}{24} = \frac{1}{24} [/tex]
[tex]g) \frac{5}{18} - \frac{1}{6} = \frac{5 - 3}{18} = \frac{2}{18} = \frac{1}{9} [/tex]
[tex]h) \frac{1}{4} - \frac{3}{16} = \frac{4 - 3}{16} = \frac{1}{16} [/tex]
