Question

What should be added in -5/7 that the sum may be zero?​

Answer 1

Answer:

5/7

Step-by-step explanation:

Just simply one positives will make the negative disappear as both have same magnitude.

Answer 2

Answer:

-5/7+x=0

x=0-(-5/7)

x=0/7-(-5/7)

x=5/7