Question

What number should be added to -2/3 to get -1/7??

Answer 1

Answer:

11/21

Step-by-step explanation:

let that no be x, than accordingly we'll have :

(-2/3) + x = (-1/7)

or x = 11/21

Answer 2

$(\frac{ -2}{3} ) \: + \: ( \frac{ -1}{7} ) \\ \\ = > \frac{ - 2}{3} - \frac{1}{7} \\ \\ = > \frac{ - 14 - 3}{21} \\ \\ = > \frac{ - 17}{21}$