352×135barre de fraction÷440×108 54÷bare de fraction×330barre de FRACtion÷45×42 barre de fraction÷par99×7×1barre de faction÷par 32

[tex]\frac{352*135}{440*108} = \frac{47520}{47520} = 1\\ \\ \frac{ \frac{54*330}{45*42} }{ \frac{99*7*1}{32} } = \frac{ \frac{17820}{1890} }{ \frac{693}{32} } = \frac{ \frac{66}{7} }{ \frac{693}{32} } =\frac{64}{147}[/tex]