Question

( 8 + 2/5) Dividido (6 - 9/4) Con proceso

Answer 1

ola
=(8+2/5)÷(6-9/4)
=(40/5+2/5)÷(24/4-9/4)
=(42/5)÷(15/4)
=(42/5)×(4/15)
=168/75
=56/25

Answer 2

$\left( 8 + \dfrac{2}{5}\right): \left(6 - \dfrac{9}{4}\right)= \\ \\ Primero\ resolvemos\ la \ suma \ y \ la \ resta \\ \\ \\ \left( \dfrac{8*5}{5} +\dfrac{2}{5}\right): \left( \dfrac{6*4}{4} - \dfrac{9}{4}\right)= \quad buscamos \ com\'un \ denominador\\ \\ \\ \left( \dfrac{40+2}{5} \right): \left( \dfrac{24-9}{4}\right)= \\ \\ \\ \left( \dfrac{42}{5} \right): \left( \dfrac{15}{4}\right)= \left( \dfrac{42*4}{5*15}\right)= \ multiplicamos \ cruzado \ para \ dividir$

$\left( \dfrac{42*4}{5*15}\right)= \left( \dfrac{168}{75}\right)=\quad simplificamos \\ \\ \\ \dfrac{168}{75}= \boxed{ \dfrac{56}{25} }$


Espero que te sirva, salu2!!!!