Database: california_schools
Question: What is the total number of non-chartered schools in the county of Los Angeles with a percent (%) of eligible free meals for grades 1 through 12 that is less than 0.18%?
SQL: SELECT COUNT(T2.School) FROM frpm AS T1 INNER JOIN schools AS T2 ON T1.CDSCode = T2.CDSCode WHERE T2.County = 'Los Angeles' AND T2.Charter = 0 AND CAST(T1.`Free Meal Count (K-12)` AS REAL) * 100 / T1.`Enrollment (K-12)` < 0.18