Question

The sum of two rational number is 8 upon 5 if the first number is - 2 upon 5 find the other​

Answer 1

Let the other rational number be represented by x.

According to the problem, we know that the sum of the two rational numbers is 8/5. Therefore, we can write:

`-(2)/(5) +x(8)/(5)`

To solve for x, we can isolate it on one side of the equation by subtracting -2/5 from both sides:

`x=(8)/(5)+(2)/(5)`

Simplifying the right-hand side by finding a common denominator, we get:

`x=(10)/(5)`

And simplifying the fraction, we get:

`x=2`

Therefore, the other rational number is 2.

Answer 2

Other rational number is 2.

Explanation:

Solution:

According to the question:

Let the other rational number be x.

We know that the sum of the two numbers is
`\tt (8)/(5)` , and the first number is
`\tt (-2)/(5)`.

So, we can write the following equation:

`\tt x - (2)/(5) =( 8)/(5)`

Let's solve for x, we add
`\tt (2)/(5)` to both sides of the equation. This gives us:

`\tt x =(2)/(5) +( 8)/(5)`

Simplifying, we get:

`\tt x =( 8+2)/(5)`

`\boxed{\tt x=2}`

Therefore, the other rational number is 2.