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7 supra 3 minus 5 supra 9

Răspuns :

[tex] [/tex]
7/3-5/9
amplificam 7/3 cu 3
21/9-5/9= 16/9=

[tex] \frac{7}{3} - \frac{5}{9} = \frac{21}{9} - \frac{5}{9} = \frac{16}{9} [/tex]