Question

what number should be added to -8/11 to get 5/9

Answer 1

Let that number be x,

-8/11 + x = 5/9

or, -8+11x /11 = 5/9

or, 11x - 8 / 11 = 5/9

or, 11x - 8 = 55/9

or, 11x = 55/9 + 8

or,11x = 440+ 72/ 72

or, 11x = 512/72

or, x = 512/792