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Sagot :

Réponse :

Bonjour

Explications étape par étape

[tex]a.\frac{3}{5} = \frac{3*7}{5*7} =\frac{21}{35}[/tex]

[tex]b. \frac{3}{4} = \frac{3*15}{4*15}=\frac{45}{60}[/tex]

[tex]c.\frac{80}{100} =\frac{80:20}{100:20} =\frac{4}{5}[/tex]

[tex]d. \frac{49}{21} =\frac{49:7}{21:7} =\frac{7}{3}[/tex]

[tex]a. \frac{4}{3}=\frac{20}{15}[/tex]

[tex]b. \frac{5}{6}=\frac{30}{36}[/tex]

[tex]c.\frac{3,4}{7,8}=\frac{34}{78}[/tex]

[tex]d.\frac{56} {24}=\frac{7}{3}[/tex]

[tex]e.\frac{72}{45}=\frac{8}{5}[/tex]

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