Question

3/4+1/4:[5/8-4/5:2]
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Answer 1

BIERN VEAMOS:

$\boxed {\displaystyle \mathbb {PROCEDIMIENTO:}}$

$3/4+1/4:\left[5/8-4/5:2\right]$

$\dfrac{\frac{3}{4}+\dfrac{1}{4}}{\dfrac{5}{8}-\dfrac{\dfrac{4}{5}}{2}}$

$=\dfrac{\frac{4}{4}}{\dfrac{5}{8}-\dfrac{\dfrac{4}{5}}{2}}$

$=\dfrac{1}{\dfrac{5}{8}-\dfrac{\dfrac{4}{5}}{2}}$

$=\dfrac{1}{\dfrac{5}{8}-\dfrac{4}{10}}$

$=\dfrac{1}{\dfrac{5}{8}-\dfrac{2}{5}}$

$=\dfrac{1}{\frac{9}{40}}$

$\mathrm{Aplicar\:las\:propiedades\:de\:las\:fracciones}:\quad \frac{1}{\frac{b}{c}}=\frac{c}{b}\\=\dfrac{40}{9}$

Respuesta ➡ $=\dfrac{40}{9}$