What is the ratio between the 5 stars votes for 'No Loan Again, Naturally' episode and 'Coming to Homerica' episode?
5 stars votes refers to stars = 5 ; 'No Loan Again, Naturally' and 'Coming to Homerica' are both the title of episode;  ratio = Divide (votes where title = 'No Loan Again, Naturally', votes where title = 'Coming to Homerica')
SELECT CAST(SUM(CASE WHEN T1.title = 'No Loan Again, Naturally' THEN T1.votes ELSE 0 END) AS REAL) / SUM(CASE WHEN T1.title = 'Coming to Homerica' THEN T1.votes ELSE 0 END) AS ratio FROM Episode AS T1 INNER JOIN Vote AS T2 ON T2.episode_id = T1.episode_id WHERE T2.stars = 5;