Question

Ajutor?.. Va rogg :((​

Answer 1

[10,(6)-20:3]:2,5

Vom scrie totul sub forma de fractii.

10,(6)=$10\frac{6}{9} =\frac{96}{9} =\frac{32}{3}$

20:3=$\frac{20}{3}$

2,5=$\frac{25}{10} =\frac{5}{2}$

$(\frac{32}{3}-\frac{20}{3}):\frac{5}{2}\\\\=\frac{12}{3}:\frac{5}{2}\\\\=4*\frac{2}{5}\\\\=\frac{8}{5}$

Answer 2

[10,(6)-20:3]:2,5=

=[(106-10)/9-20/3]:25/10=

=(96/9-20/3):5/2=

=(32/3-20/3):5/2=

=12/3:5/2=

=4:5/2=

=4×2/5=8/5