Question

The sum of two rational numbers is – 2. If one of the numbers is -12/5 , find the other. ​

Answer 1

Step-by-step explanation:

12/5×-2

=-24/5

hope it helps you

Answer 2

Answer:

Given :-

• The sum of two rational number is - 2.
• One of the numbers is - 12/5.

To Find :-

• What is the other number.

Solution :-

Let,

$\mapsto \bf Other\: Number =\: x$

As we know that :

$\footnotesize\bigstar\: \: \sf\boxed{\bold{\pink{Sum\: of\: two\: numbers =\: One\: Number + Other\: Number}}}\: \: \bigstar$

According to the question by using the formula we get,

$\implies \sf \dfrac{- 12}{5} + x =\: - 2$

$\implies \sf x =\: - 2 - \dfrac{- 12}{5}$

$\implies \sf x =\: \dfrac{- 10 - (- 12)}{5}$

$\implies \sf x =\: \dfrac{- 10 + 12}{5}$

$\implies \sf\bold{\red{x =\: \dfrac{2}{5}}}$

${\small{\bold{\underline{\therefore\: The\: other\: number\: is\: \dfrac{2}{5}\: .}}}}$

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VERIFICATION

$\leadsto \sf \dfrac{- 12}{5} + x =\: - 2$

By putting x = 2/5 we get,

$\leadsto \sf \dfrac{- 12}{5} + \dfrac{2}{5} =\: - 2$

$\leadsto \sf \dfrac{- 12 + 2}{5} =\: - 2$

$\leadsto \sf \dfrac{- 10}{5} =\: - 2$

$\leadsto \sf\bold{\purple{- 2 =\: - 2}}$

Hence, Verified.