Question

is zero is a rational number can you write it in the form P upon q where p and q are integers and q = 0

Answer 1

0 is a rational no. as it can be written as 0/1

Answer 2

0 is a rational no. As we can put q=1, 0/1, so it is a rational no.
0 is not having any denominator so the no. Which doesn't have denominator always has 1 as it's denominator.