Question

The product of two rational numbers is (-28/81). If one of them is (-2/3), the find the other.

Answer 1

The other rational number is . 14

Explanation:

Answer 2

The other rational number is
`(14)/(27)`.

Explanation:

First rational number is
`(-2)/(3)`

Let other rational number is
`(x)/(y)`

The product of two rational numbers is
`(-28)/(81)`

According to question,

`(x)/(y)* (-2)/(3)=(-28)/(81)`

Multiplying both sides by (-3/2) such that,

`(x)/(y)* (-2)/(3)* (-3)/(2)=(-28)/(81)* (-3)/(2)\\\\(x)/(y)=(14)/(27)`

So, the other rational number is
`(14)/(27)`.