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Sagot :

GGDU19

Bonjour,

[tex]N=\frac{\frac{5}{3}-\frac{7}{9} }{\frac{1}{4}-\frac{1}{2}}=\frac{\frac{5*3}{3*3}-\frac{7}{9} }{\frac{1}{4}-\frac{1*2}{2*2}}=\frac{\frac{15}{9}-\frac{7}{9} }{\frac{1}{4}-\frac{2}{4}}=\frac{\frac{15-7}{9}}{\frac{1-2}{4}}=\frac{\frac{8}{9}}{\frac{-1}{4}}=\frac{8}{9}*-\frac{4}{1}=-\frac{8*4}{9*1} =-\frac{32}{9}[/tex]

Bonjour,

N = (5/3 - 7/9) / (1/4 - 1/2)

N = (15/9 - 7/9) / (1/4 - 2/4)

N = 8/9 ÷ (-1/4)

N = 8/9 × -4/1

N = -32/9

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