Răspuns:
Explicație pas cu pas:
[tex]8\frac{1}{6} :2\frac{1}{3} =\frac{49}{6} :\frac{7}{3} =\frac{49}{6} *\frac{3}{7}=\frac{7}{2} \\\\5\frac{5}{5} :3\frac{1}{3} =\frac{125}{5} :\frac{10}{3}=25*\frac{3}{10} =\frac{75}{10} =7.5\\(2.5+3)^{2} =5.5^{2} =30.25\\(4.5-3)^{2} =(1.5)^{2}=2.25\\3\frac{3}{4} -1.25=\frac{15}{4}-\frac{125}{100}=\frac{15}{4} -\frac{5}{4} =\frac{11}{4} \\\\\5\frac{1}{4}-3.75=\frac{21}{4} -\frac{375}{100} =\frac{21}{4}-\frac{15}{4} =\frac{6}{4}[/tex]
