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(7/15 - 4/15) - 2/15

Răspuns :

(7/15 - 4/15 ) - 2/15 =
7 - 4  / 15 - 2/15 =
3/15 - 2/15 =
3-2 / 15 =
1/15
[tex]( \frac{7}{15} - \frac{4}{15} )- \frac{2}{15} = \frac{3}{15} - \frac{2}{15} = \frac{1}{15} =0,066[/tex]