Question

va rog exercitiu dar si rezolvarea dau coroana

Answer 1

[tex]\it \left(12\dfrac{5}{12}+1\dfrac{2}{3}-3\dfrac{5}{6}+2\dfrac{3}{4}\right):\left(2\dfrac{1}{2}\cdot\dfrac{2}{5}-\dfrac{7}{9}\right) = \\\;\\ \\\;\\ =\left(\dfrac{149}{12}+\dfrac{^{4)}5}{\ 3}-\dfrac{^{2)}23}{6}+\dfrac{^{3)}11}{4}\right):\left(\dfrac{5}{2}\cdot\dfrac{2}{5}-\dfrac{7}{9}\right) = \\\;\\ \\\;\\ = \dfrac{149+20-26+33}{12}:\left(1-\dfrac{7}{9}\right) = \dfrac{176} {12}:\dfrac{2}{9}=\dfrac{176} {12}\cdot\dfrac{9}{2} =66.[/tex]