Question

Wwhich of the following pairs represent the same rational numbers number

1. -7/21, 3/9
2. -16/20, 20/-25​

Answer 1

Answer:

pair no.1 is not represent same rational nos.because ,one if them is positive and another is negative.

pair no.2 represent same rational nos.because they are equivalent.

when we talk about, -16/20 ,it's simplest form is -4/5.

when we talk about. 20/-25, then it's simplest form is. -4/5.

since the simplest form ( or standard form) of both the rational nos.are same thus they are equivalent.

and hence this pair represent same rational nos.