Answer
False, could be changed to
"All integers are rational numbers."
Work Step by Step
If you take any integer i, we can write it as
$\displaystyle \frac{i}{1}$, which is a fraction made of integers, and the denominator is not 0....
so , i is a rational number.
The statement is false, and it could be changed to
"All integers are rational numbers."
to become true.