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4/9 - ( 1 1/3 + 7 / 9) = ?​

Răspuns :

[tex] \frac{4}{9} - ( \frac{11}{3} + \frac{7}{9} ) = [/tex]

[tex] = \frac{4}{9} - \frac{33 + 7}{9} = [/tex]

[tex] = \frac{4}{9} - \frac{40}{9} = [/tex]

[tex] = - \frac{36}{9} = [/tex]

[tex] = - 4[/tex]

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