Question

What should be substrated from {-5/7} to get (-1)

Answer 1

Answer:

let  the number be  x

according to the question

-5/7 - x = -1

taking lcm

(-5 - 7x )/7 = -1

-5 - 7 x = -1 X 7

-5 - 7x = -7

-7x = -7 + 5

x = -2 / -7

x 2 / 7 ans