Question

please answer it with full solution.
the sum of two rational number is -2. if one of them is
$\frac{ - 12}{7}$
find the other

Answer 1

sum=-2
one number=-12/7
other no. =
$- 2 - (\frac{ -12 }{7} )$
-2+12/7
-14+12/7
-2/7
$\frac{ - 2}{7 }$

Answer 2

Let the Other Rational Number be : R

Given that Sum of the Two Rational Numbers = -2

Also it is Given that the Other Rational Number is -12/7

⇒ $R - \frac{12}{7} = - 2$

⇒ $R = -2 + \frac{12}{7}$

⇒ $R = \frac{-14 + 12}{7}$

⇒ $R = \frac{-2}{7}$

So the Other Rational Number is -2/7