Question

What must be added to x/y to make it y/x?

Answer 1

Here is your answer

The number must be added is =

$= \frac{y}{x} - \frac{x}{y} \\ = \frac{y {}^{2} - x {}^{2} }{xy} \: answer$
Hope it helps you

Answer 2

Answer:

The answer is y^2-x^2/xy

Step-by-step explanation:

Let the number be a.

according to question

x/y+a=y/x

a=y/x-x/y

a=y^2-x^2/xy ans.......