[tex]5\frac{5}{12} - 1\frac{19}{30} = 5\frac{25}{60} - 1\frac{38}{60} = 4\frac{85}{60} - 1\frac{38}{60} = 3\frac{47}{60}\\\\\\7\frac{9}{20} - 5\frac{15}{16} = 7\frac{36}{80} - 5\frac{75}{80} = 6\frac{116}{80} - 5\frac{75}{80} = 1\frac{41}{80}\\\\4\frac{9}{28} - 1\frac{31}{42} = 4\frac{27}{84} - 1\frac{62}{84} = 3\frac{111}{84} - 1\frac{62}{84} = 2\frac{49}{84} \\\\3\frac{7}{10} - 2\frac{17}{18} = 3\frac{63}{90} - 2\frac{85}{90} = 2\frac{153}{90} - 2\frac{85}{90} = \frac{68}{90} = \frac{34}{45} \\\\[/tex]
[tex]6\frac{1}{12} - \frac{27}{28} =6\frac{7}{84} - \frac{81}{84} = 5\frac{91}{84} - \frac{81}{84} = 5\frac{10}{84} = 5\frac{5}{42} \\\\7\frac{3}{16} - 2\frac{19}{24} = 7\frac{9}{48} - 2\frac{38}{48} = 6\frac{57}{48} - 2\frac{38}{48} = 4\frac{19}{48}[/tex]
