Question

Question 74
For rational numbers x and y, if x < y, then x - y is a positive rational number.

Answer 1

False
For rational numbers x and y
If x < y, then x - y is a negative rational number
e.g. Let $x=\frac{1}{3},y=\frac{1}{2}$ are two rational numbers.
Then, according to equation,
$x-y=\frac{1}{3}-\frac{1}{2}=\frac{2-3}{6}=\frac{-1}{6}$