Write a procedure
to read a rational number given in the form “numerator”/“denominator”, and store these two values in num and den, respectively. Additionally, you must remove all common factors from num and den. For instance, if the input has
the values after the call must be num = 11 and den = 2.
1 ≤ num ≤ 109 and 1 ≤ den ≤ 109
Observation You only need to submit the required procedure; your main program will be ignored.