Question

va rog ajutați-mă dau coroană urgenttt ​

Answer 1

Răspuns:

R

Explicație pas cu pas:

[3/5-0,(2)]×9/17=

(⁹3/5- ⁵2 /9)×9/17=

(27-10)/45×9/17=

17/(5×17)=1/5

0,(8):2+1=8/9:2+1=

4/9+⁹1=(4+9)/9=13/9

Answer 2

$\it \dfrac{3}{5}-0,(2)=\dfrac{^{9)}3}{\ \ 5}-\dfrac{^{5)}2}{\ \ 9}= \dfrac{27-10}{45}=\dfrac{17}{45}\\ \\ \\ Acum,\ exerci\c{\it t}iul\ devine:\\ \\ \dfrac{\not17}{45}\cdot\dfrac{9}{\not17}=\dfrac{\ 9^{(9}}{45}=\dfrac{1}{5}$

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$\it 0,(8):2+1=\dfrac{8}{9}:\dfrac{2}{1}+1=\dfrac{8}{9}\cdot\dfrac{1}{2}+1=\dfrac{\ \ 8^{(2}}{18}+1=\dfrac{4}{9}+1=1\dfrac{4}{9}$