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Sagot :

Réponse:

bonjour

a

[tex] \frac{2}{9} \times \frac{ - 3}{5} [/tex]

[tex] = \frac{ - 6}{45} [/tex]

b

[tex] \frac{3}{5} \times \frac{5}{1} [/tex]

[tex] = \frac{15}{5} [/tex]

c

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

[tex] = \frac{ - 1}{12} [/tex]

d

[tex] \frac{22}{7} \times \frac{ - 1}{11} [/tex]

[tex] = \frac{ - 22}{77} [/tex]

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