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Sagot :

7/5 - 7/3 x 15/14
7/5 - 105/42
14/10 - 25/10
-11/10
[tex]\frac{7}{5} - \frac{7}{3} \times \frac{15}{14} \\ = \frac{7}{5} - \frac{5}{2} \\ = \frac{14}{10} - \frac{25}{10} \\ = - \frac{11}{10}[/tex]

En espérant t'avoir aidé.

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