Question

va rog rapid dau coroana si 15 puncte!!!!!!​

Answer 1

Răspuns:

1,3

Explicație pas cu pas:

= $[(-\frac{3}{5} )*\frac{25}{10} +\frac{5}{6} ] : \frac{10}{21} +\frac{11}{10} +\frac{1}{10} *9$  

= $(-\frac{75}{50} +\frac{5}{6} )*\frac{21}{10} +\frac{11}{10} +\frac{9}{10}$

= $(-\frac{3}{2} +\frac{5}{6} )*\frac{21}{10} + \frac{20}{10}$

= $\frac{-9+5}{6} * \frac{21}{10} + 2$

= $\frac{-4}{6} * \frac{21}{10} +2$

= $\frac{-42}{60} +2$

= $\frac{-7}{10} + 2$

= $\frac{-7}{10} + \frac{20}{10} = \frac{13}{10} = 1,3$