Question

ayúdenme porfis

(+1 /3) + (-1/2) =
(-1/4) + (+2/3) =
(+1/7) + (-2/4) =
(-2/5) + (-5/6) =
(-5/3) (-12/7) (6) =​

Answer 1

Respuesta:

ayúdenme porfis  

(+1 /3) + (-1/2) =

$=\frac{1}{3}+\left(-1/2\right)\\\\=\frac{1}{3}+\frac{-1}{2}\\\\=-\frac{1}{6}$

(-1/4) + (+2/3) =

$=\frac{-1}{4}+\left(2/3\right)\\\\=\frac{-1}{4}+\frac{2}{3}\\\\=\frac{5}{12}$

(+1/7) + (-2/4) =

$=\frac{1}{7}+\left(-2/4\right)\\\\=\frac{1}{7}+\frac{-2}{4}\\\\=-\frac{5}{14}$

(-2/5) + (-5/6) =

$=\frac{-2}{5}+\left(-5/6\right)\\\\=\frac{-2}{5}+\frac{-5}{6}\\\\=-\frac{37}{30}$

(-5/3) (-12/7) (6) =​

$=\frac{-5}{3}\left(-12/7\right)\left(6\right)\\\\=\frac{-5}{3}\cdot \frac{-12}{7}\left(6\right)\\\\=\frac{-5}{3}\cdot \frac{-12}{7}\left(6\right)\\\\=17\frac{1}{7}$

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