Question

the sum of 3 rational numbers is -1 by 5. if two of the numbers are3 by 10 and 2 by 5. find the third rational number​

Answer 1

Answer:

-9/10

Step-by-step explanation:

Sum of 3 rational numbers = -1/5

First rational number = 3/10

Second rational number = 2/5

Let the third rational number be x.

According to Question,

3/10 + 2/5 + x = -1/5

7/10 + x = -2/10

x = -2/10 - 7/10

x = -9/10