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foloseste factorul comun
2/12 * 6 + 1/13 * 6 + 12/13 * 6 =


Răspuns :

Explicație pas cu pas:

[tex]6 \times ( \frac{2}{12} + \frac{1}{13} + \frac{12}{13} ) = [/tex]

[tex]6 \times ( \frac{1}{6} + \frac{13}{13} ) = [/tex]

[tex]6 \times ( \frac{1}{6} + 1) = [/tex]

[tex]6 \times \frac{1 + 6}{6} = [/tex]

[tex]6 \times \frac{7}{6} = 7[/tex]