Question

Ajutați-mă va rog eu mult

Answer 1

[tex]21\frac{1}{5}:(7\frac{1}{5}-3\frac{1}{10}+6\frac{1}{2})+\frac{2}{3}\cdot(\frac{5}{2}-\frac{5}{9}):\frac{1}{27}=\\ \\ =\frac{106}{5}(\frac{72-31+65}{10})+\frac{2}{3}(\frac{45-10}{18})\cdot27=\\ \\ =\frac{106}{5}\cdot\frac{106}{10}+35=\frac{106^2+1750}{50}=\frac{12986}{50}=259,72[/tex]