lupitaserr83 lupitaserr83

27-10-2018
Mathematics

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what is -[tex]\frac{5}{8}[/tex] ÷ [tex]\frac{9}{10}[/tex]

Respuesta :

01-11-2018

[tex]\boxed{\dfrac{a}{b}\div\dfrac{c}{d}=\dfrac{a}{b}\cdot\dfrac{d}{c}}\\\\-\dfrac{5}{8}\div\dfrac{9}{10}=-\dfrac{5}{8}\cdot\dfrac{10}{9}=-\dfrac{5\cdot10}{8\cdot9}=-\dfrac{50}{72}=-\dfrac{50:2}{72:2}=-\dfrac{25}{36}[/tex]

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