Read a rational number (2) P93157

Write a procedure

that tries to read a rational number given in the form “numerator”/“denominator”, and stores these two values in @num@ and @den@, respectively. Additionally, you must remove all common factors from @num@ and @den@. Furthermore, if the input had a rational number, you must return true; otherwise you must returna false. For instance, this code

with this input

66/12
100/100

should print

11 2
1 1

Precondition

1 ≤ @num@ ≤ 10⁹ and 1 ≤ @den@ ≤ 10⁹

Observation You only need to submit the required procedure; your main program will be ignored.