[tex]5,12:(5-2,44)=\\5,12:2,56=\\2[/tex]
[tex]2^{3}+(3\frac{1}{5}-1\frac{1}{3})=\\8+(\frac{16}{5}-\frac{4}{3})=\\8+\frac{28}{15}=\\\frac{148}{15}=9\frac{13}{15}[/tex]
[tex]13,5-3\frac{1}{2}:5,25=\\\frac{27}{2}-\frac{7}{2}:\frac{21}{4}=\\\frac{27}{2}-\frac{7}{2}*\frac{4}{21}=\\\frac{27}{2}-\frac{2}{3}=\\\frac{77}{6}=12\frac{5}{6}[/tex]
