Answer :

the answer is 0.555556 I really hope this helps!                      
To do this sum enter 5 then divide then 9 into you calculator this will return the sum .5555555556 no I'm not humouring you the harder part comes next. To find what the equivalent % it is we divide the 9 into the 5 then multiply by 100 returning 55.55555556 this is the % ANSWER 55.55555556%