Question

Question: The sum of two rational numbers is 8. If one of them is
$\frac{ - 10}{7}$
Find the other.​

Answer 1

Answer:

let the other rational no. be x

so the equation will be

x + -10/7 = 8

$x = \frac{ 8}{1} - \frac{ - 10}{7 }$

$x = \frac{8 \times 7}{1 \times 7} - \frac{ - 10}{7}$

$x = \frac{56 -( - 10)}{7}$

$x = \frac{56 + 10}{7}$

$x = \frac{66}{7}$