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Sagot :

[tex]A = 1 - \frac{1}{3} \times \frac{9}{8} [/tex]

[tex] = 1 - \frac{1 \times 9}{3 \times 8} [/tex]

[tex] = 1 - \frac{9}{24} [/tex]

[tex] = \frac{24}{24} - \frac{9}{24} [/tex]

[tex] = \frac{24 - 9}{24} [/tex]

[tex] = \frac{15}{24} [/tex]

[tex] = \frac{3 \times 5}{3 \times 8} [/tex]

[tex] A = \frac{5}{8} [/tex]

Réponse :

[tex]A = 1 - \frac{1}{3} *\frac{9}{8} \\ \\A = 1 - \frac{1*9}{3*8} \\ \\A = 1 - \frac{9}{24} \\ \\A = \frac{24}{24} - \frac{9}{24} \\ \\A = \frac{24 - 9}{24} \\ \\A = \frac{15}{24} = \frac{5}{8}[/tex]

J'espère avoir pu t'aider !

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