Question

The sum of two rational numbers is -4/7.if one of the numbers is -2/3, find the other number.

Answer 1

Step-by-step explanation:

other number is 2/21

Hope this will help you...

Answer 2

Given :

Sum of two rational numbers = -4/7

One of the numbers = -2/3

To find :

• the other number

Solution :

Let the other number be X .

Now , According to the question :-

⟹$x + ( - \dfrac{2}{3} ) = - \dfrac{4}{7}$

⟹$x - \dfrac{2}{3} = - \dfrac{4}{7}$

⟹$x = \dfrac{2}{3} - \dfrac{4}{7}$

⟹$x = \dfrac{14 - 12}{21}$

⟹$x = \dfrac{2}{21}$

Therefore the other number = 2/21

Answer :-

2/21

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verification of answer :-

To verify your answer , add 2/21 with -2/3 . If you get sum as -4/7 then your answer is correct.

⟹$\dfrac{2}{21} + ( \dfrac{ - 2}{3} )$

⟹$\dfrac{2}{21} - \dfrac{ 2}{3}$

⟹$\dfrac{2 - 14}{21}$

⟹$\dfrac{ - 12}{21}$

⟹$- \dfrac{4}{7}$

Hence verified .

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