Question

Calculati: 30:(1 supra 10- 1 supra 10:3)
Dau coroana!!

Answer 1

30:($\frac{1}{10}$ - $\frac{1}{10}$ :3)=
30:($\frac{1}{10}$ - $\frac{1}{10}$ *$\frac{1}{3}$ =
30:($\frac{1}{10}$ - $\frac{1}{30}$)=
30:($\frac{3}{30}$ - $\frac{1}{30}$)=
30:$\frac{2}{30}$=
30*$\frac{30}{2}$=
30*15=
450

Answer 2

30:(1/10 -1/10 :3)=
30:( 1/10 -1/10*1/3)=450
30:(1/10 -1/30)=
30:(3/30-1/3/)=
30: 2/30=
30:1/15=
30*15/1=450