Răspuns:
[tex](53\frac{2}{3}-22\frac{14}{15}[/tex]÷[tex]2\frac{2}{3}[/tex])÷([tex]20\frac{1}{15}+25\frac{5}{7}[/tex]÷[tex]1\frac{1}{35}[/tex]) = ([tex]\frac{161}{3}-\frac{344}{15}[/tex]÷[tex]\frac{8}{3}[/tex]) ÷
÷ [tex]\frac{301}{15}+\frac{180}{7}[/tex]÷[tex]\frac{36}{35}[/tex] =
= [tex](\frac{161}{3}-\frac{344}{15}[/tex]•[tex]\frac{3}{8}[/tex])÷([tex]\frac{301}{15}+\frac{180}{7}[/tex]•[tex]\frac{35}{36})[/tex] = [tex](\frac{161}{3}-\frac{1032}{120}):(\frac{301}{15}+\frac{6300}{252}) = (\frac{6440}{120}-\frac{1032}{120}):(\frac{25284}{1260}+\frac{31500}{1260}) = \frac{5408}{120}:\frac{56784}{1260}=\frac{5408}{120}[/tex]•[tex]\frac{1260}{56784}=\frac{6814080}{151200}[/tex]
