Question

the sum of two rational numbers is (-4/3) if one of the number is 2/5 find the other​

Answer 1

Let the other number be x.

According to the question,

$</p><p>\\ </p><p> \sf \rightarrow \quad x + \frac{2}{5} = - \frac{4}{3} \\ \\ \sf \rightarrow \quad x = - \frac{4}{3} - \frac{2}{5} \\ \\ \sf \rightarrow \quad x = \frac{ - 20 - 6}{15} \\ \\ \sf \rightarrow \quad x = - \frac{26}{15} </p><p>$