here is a solution with the use of scan function to separate words
then i use another function to translate the numbers in characters into a numeric sas variable
i showed, as you not precise give the length of the char variable, two start variables with the same information
data a;
a=" 136/80 ";
b="136/80";
c=input(left(scan(a,1,"/")),best12.);
d=input(scan(b,2,"/"),3.);
put c= d=;
run;