Răspuns:
[tex](5\frac{3}{5} -1\frac{1}{3} ):(7\frac{7}{12} -2\frac{1}{4} )=(\frac{3)28}{5}-\frac{5)4}{3}):(\frac{91}{12} -\frac{3)9}{4})=\frac{84-20}{15} :\frac{91-27}{12} =\frac{64}{15} *\frac{12}{64} =\frac{12(3}{15} =\frac{4}{5}[/tex]
Explicație pas cu pas: