Question

The product of two rational number is -21 if one of them is -7 find other

Answer 1

let other rational number is P
a/c to question ,
P × ( -7) = - 21

P = (-21)/(-7) = 3

P = 3

hence other rational number is 3

Answer 2

Hi there !!

Let the unknown rational number be "x"

Given :

-7 × x = -21

x = -21/-7

x = 3

Hence, the rational number is 3