Answer the following question, with explanation first.
Kim has 4 dozen shirts. She lets her sister have 1/3 of them. How many shirts does she have left?

32
She had 4 * 12 = 48 shirts to start with.

She gives away 48 / 3 = 16.

So she has 48 - 16 = 32 left.

.

The answer is 32