{[0,(7)+1/5]:11/15} - [0,5-0,1(6)]=
[tex] [\frac{7}{9} + \frac{1}{5} ] * \frac{15}{11} - [ \frac{1}{2} - \frac{15}{90} ]=[/tex]
Aduc la acelasi numitor in prima paranteza care este 45 , amplific prima fractie cu 5 si a doua cu 9.
[tex] \frac{35}{45} + \frac{9}{45} = \frac{44}{45} [/tex]
15/90 du simplificare cu 15 devine 1/6
[tex] \frac{44}{45} * \frac{15}{11} - [ \frac{1}{2} - \frac{1}{6} ]= \frac{4}{3} - [ \frac{3}{6} - \frac{1}{6} ]= \frac{8}{6} - \frac{2}{6} = \frac{6}{6} =1[/tex]
