Sunil asks Sandra for 15 cookies. Saki then asks Sandra for 12 cookies. If Sandra originally had sixty cookies, What fraction of the initial amount of cookies does she have?
Step-by-step explanation: you take the original 60 cookies and take away the 12 and the 15 to get 33. The original whole number was 60/60. Now it would be 33/60, but in simplest form it is 11/20.