Question

Va roog mult repede!

Answer 1

2:(2/3)²+11/5:11/10=
2:4/9+11/5:11/10=
2*9/4+11/5*10/11=
⇒⇒⇒⇒⇒⇒⇒⇒18/4+110/55⇒⇒numitor comun 220
Prima amplific cu 55 ,iar pe a 2-a cu 4.
990/220+440/220=1430/220(simplific cu 5)⇒⇒286/44(simplific cu 2)⇒⇒143/22(simplific cu 11)⇒⇒13/2.
Deci raspunsul final este 13/2.

Answer 2

$\displaystyle 2: \left(\begin{ \frac{2}{3} }{}&&\\&&\\&&\end{array}\right)^2+ \frac{11}{5} : \frac{11}{10} =2: \frac{4}{9} + \frac{11}{5} \cdot \frac{10}{11} =2 \cdot \frac{9}{4} + \frac{110}{55} = \\ \\ = \frac{18}{4} + \frac{110}{55} = \frac{990}{220} + \frac{440}{220} = \frac{1430}{220} =\boxed{ \frac{13}{2} }$