Răspuns:
[tex] \frac{4}{5} - \frac{2}{7} \div \frac{7}{13} - \frac{2}{5} - (\frac{6}{2} \times \frac{1}{3} - \frac{4}{5} \div \frac{5}{4} ) = \\ = \frac{4}{5} - \frac{2}{7} \times \frac{13}{7 } - \frac{2}{5} - ( \frac{2}{1} \times 1 - \frac{4}{5} \times \frac{5}{4} ) = \\ = \frac{4}{5 } - \frac{2}{5} - \frac{2 \times 13}{7 \times 7} - ( \frac{2}{1} - \frac{1}{1}) = \\ = \frac{2}{5} - \frac{26}{49} - (2 - 1) = \\ = \frac{98 - 130}{245} - 1 = \\ = \frac{32}{245} - 1 = \\ = \frac{32 - 245}{245} = - \frac{213}{245} [/tex]
Explicație pas cu pas:
sper sa te ajute
