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Sagot :

Bonsoir,

Calculer :

[tex]A = \frac{ - 4}{ - 5} \div \frac{6}{ - 15} \\ [/tex]

[tex]A = - 2 \times \frac{3}{3} [/tex]

[tex]\boxed{A = - 2}[/tex]

[tex]B = - 7 \div \frac{10}{21} [/tex]

[tex]B = - 7 \times \frac{21}{10} [/tex]

[tex]\boxed{B = - \frac{147}{10} }[/tex]

[tex] C = \frac{ - 8}{ - 7} \div ( - 6)[/tex]

[tex]C = - \frac{4}{7} \times \frac{1}{3} [/tex]

[tex] \boxed{ C = - \frac{4}{21} } [/tex]

Bonne soirée.

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