Question

add: -11 by 13 and 7 by -13 ​

Answer 1

Answer:

Step-by-step explanation:

-11/13+7/-13

=-11/13-7/13

=-18/13

Answer 2

Step-by-step explanation:

$\displaystyle \tt{ \longmapsto \: \frac{ - 11}{13} + \frac{7}{ - 13} }$

As denominators r same so we can add :

$\tt{ \longmapsto \: \dfrac{ - 11 + 7}{ - 13} }$

$\tt{ \longmapsto \: \dfrac{ - 4}{ - 13} }$