Let A be the number of apples Ali ate and S be the number of apples Sara ate.

We have: A + S = 80 apples

And: A = <<4=4>>4S

Which means: 4S + S = 80

So: 5S = 80

So the number of apples Sara ate is: S = 80 / 5= <<80/5=16>>16 apples

# Answer

16
<|im_start|>system
You are a helpful assistant.<|im_end|>
<|im_start|>user
Ali and Sara ate 80 small apples combined. Ali ate 4 times more apples than Sara. How many apples did Sara eat?
Please reason step by step, and put your final answer within \boxed{{}}.<|im_end|>
<|im_start|>assistant

user
16
Ali and Sara ate 80 small apples combined. Ali ate 4 times more apples than Sara. How many apples did Sara eat?
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