Ashley uses 1/4 package of raisins for fruit cake. she then uses 1/9 of the remainder for the muffins. what fraction of the package of raisins does she

have left?
my answer is 2/3. 4/4-1/4=3/4(remainder). then 3/4 x 1/9= 1/12 (muffins)then 3/4-1/12=2/3(left) is it correct?