Question

The sum of two rational number is -5/13 ,one of them is 2/5.find the other​

Answer 1

Answer:

let one rational no be 2/5 and the other be x

according to the given problem2/5 +x=-5/13

x=-5/13-2/5

x=-25/65-26/65

x=-51/65

Step-by-step explanation:

Answer 2

Answer:

51/65

Step-by-step explanation:

let the 2 rational numbers be x,y,

x=-5/13 y=?

x+y=2/5

$\frac{ - 5}{13} + y = \frac{2}{5} \\ y = \frac{2}{5} + \frac{5}{13} \\ y = \frac{26 + 25}{65} \\ y = \frac{51}{65}$