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2 ori a = 7 ori B
A supra B ?


Răspuns :

2a = 7b  => a/b = 7/2

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[tex]2 \times a = 7 \times b[/tex]

[tex]2a = 7b \: | \div b[/tex]

[tex] \frac{2a}{b} = 7[/tex]

[tex]2 \times \frac{a}{b} = 7 \: | \div 2[/tex]

[tex] \frac{a}{b} = \frac{7}{2} [/tex]

[tex] \frac{a}{b} = 3.5[/tex]