Question

verify that x - y is a rational number when
x = 1, y = 5/7​

Answer 1

Answer:

Just put the values of x&y

x=1. y=5/7

1-5/7

2/7

It is rational number because it is represented in p/q form.

Answer 2

When x = 1 and y = 5/7,

Therefore,

x - y = 1 - 5/7 = 2/7.

Now, 2/7 is of the form 'a/b' (where 'a' = 2 and 'b' = 7) and 'b' ≠ 0. Also, 'a' as well as 'b' both are Rational. Therefore, it satisfies all the conditions for being a Rational Number.

So, we can conclude that x - y = 2/7 is a Rational Number.