If Lisa's surplus of 18 dresses is taken away from the total, they will have 48-18 = <<48-18=30>>30 dresses in total

They would each have the same number of dresses from these 30 i.e.

30/2 = <<30/2=15>>15 dresses which is the number of dresses that Ana actually has.

# Answer

15
<|im_start|>system
You are a helpful assistant.<|im_end|>
<|im_start|>user
Lisa has 18 more dresses than Ana. If the number of their dresses combined is 48, how many dresses does Ana have?
Please reason step by step, and put your final answer within \boxed{{}}.<|im_end|>
<|im_start|>assistant

user
15
Lisa has 18 more dresses than Ana. If the number of their dresses combined is 48, how many dresses does Ana have?
train