Question

The product of two rational number is -4/7 if one of the number is 5/21 find the other number​

Answer 1

Answer:

$x = \frac{-12}{5}$

Step-by-step explanation:

Let the other number be $x$

So,

$\frac{5}{21} X x = \frac{-4}{7} \\\\x = \frac{-4}{7} X \frac{21}{5} \\\\x = \frac{-12}{5}$

MARK IT AS BRAINLIEST PLS

Answer 2

Answer:

The other rational number is - 12/5.

Step-by-step explanation:

Let the other rational number be x

Given, one rational number = 5/21

and, their product = - 4/7

By condition,

5/21 × x = - 4/7

=> x = - 4/7 × 21/5 = - 12/5 (ans).

PLEASE SELECT MY ANSWER AS THE BRAINLIEST ANSWER.