Restabiliți şirul de rapoarte egale:
![Restabiliți Şirul De Rapoarte Egale class=](https://ro-static.z-dn.net/files/d7c/bfc725024fcaac86d0a461ce7d5301ce.jpg)
Răspuns:
[tex]2/5=a/10= > 5a=2*10= > a=20:5= > a=4\\\\4/10=6/a= > 10*6=4a= > a=60:4= > a=15\\\\6/15=a/25= > 15a=25*6= > a=150:15= > a=10\\\\10/25=18/a= > 25*18=10a= > a=450:10= > a=45\\\\\\\frac{2}{5} =\frac{4}{10} =\frac{6}{15} =\frac{10}{25} =\frac{18}{45}[/tex]