Question

efectua las siguientes operaciones​

Answer 1

Explicación paso a paso:

¡Buenas!

A )  

[tex]\left(-\dfrac{15}{23}\right)+\left(-\dfrac{19}{23}\right)[/tex]

[tex]=-\dfrac{15}{23}-\dfrac{19}{23}[/tex]

[tex]=\dfrac{-15-19}{23}[/tex]

[tex]=\dfrac{-34}{23}[/tex]

[tex]=-\dfrac{34}{23}[/tex]

B )

[tex]\left(\\\dfrac{3}{4}+\dfrac{5}{3}\right)+\left(7+\dfrac{1}{5}\right)[/tex]

[tex]=\dfrac{29}{12}+\left(7+\dfrac{1}{5}\right)[/tex]

[tex]=\dfrac{29}{12}+\dfrac{36}{5}[/tex]

[tex]=\dfrac{577}{60}[/tex]

FRACCION MIXTA

[tex]=9\dfrac{37}{60}[/tex]

C )

[tex]\left(-\dfrac{2}{5}+4\right)-\left(-\dfrac{1}{3}+1\right)[/tex]

[tex]=\dfrac{18}{5}-\left(-\dfrac{1}{3}+1\right)[/tex]

[tex]=\dfrac{18}{5}-\dfrac{2}{3}[/tex]

[tex]=\dfrac{44}{15}[/tex]

FRACCION MIXTA

[tex]=2\dfrac{14}{15}[/tex]

D )

[tex]\left(-\dfrac{3}{4}+\dfrac{5}{3}\right)-\left(\dfrac{5}{3}-\dfrac{3}{2}\right)[/tex]

[tex]=\dfrac{11}{12}-\left(\dfrac{5}{3}-\dfrac{3}{2}\right)[/tex]

[tex]=\dfrac{11}{12}-\dfrac{1}{6}[/tex]

[tex]=\dfrac{3}{4}[/tex]

¡Saludos!