Problema Solution
phil took 1/5 of cheese and rena took 4/9 of the remaining amount. what fraction of the cheese remains?
Answer provided by our tutors
If Phil took 1/5 of the cheese then what is left is 4/5 of the cheese.
Rena took 4/9 of 4/5 of the cheese, thus what is left in the end is (1 - 4/9) of 4/5 or:
(1 - 4/9)*(4/5) = (9/9 - 4/9)*(4/5) = (5/9)*(4/5) = 4/9
4/9 of the cheese remains.