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Restabiliți şirul de rapoarte egale: ​

Restabiliți Şirul De Rapoarte Egale class=

Răspuns :

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]

2 7 6. 22 18

_ = _ = _ = _ = _

5 10 9 25 21