Question

The product of rational number is -2 if one of them is 4 by 7 find the other
e other

Answer 1

Step-by-step explanation:

Let the other rational number to be x.

One rational number = 4/7

According to question,

$\frac{4}{7} \times x = - 2 \\ \frac{4x}{7} = - 2 \\ 4x = - 2 \times 7 \\ 4x = - 14 \\ x = \frac{ - 14}{4} \\ x = - \frac{ 7}{2} \\ \\ other \: number \: = - \frac{ 7}{2}$