The first week he spends: $12 * 1/3 = $<<12*1/3=4>>4.

So he has $12 - $4 = $<<12-4=8>>8 left.

In the second week, he spends $8 x 1/4 = $<<8*1/4=2>>2.

So Tom has $8 - $2 = $<<8-2=6>>6 left to finish the month.

# Answer

6
<|im_start|>system
You are a helpful assistant.<|im_end|>
<|im_start|>user
Tom receives a $12 allowance per month. In the first week, he spends a third of it; in the second week, he spends a quarter of what he has left. How much money does he have left to finish the month?
Please reason step by step, and put your final answer within \boxed{{}}.<|im_end|>
<|im_start|>assistant

user
6
Tom receives a $12 allowance per month. In the first week, he spends a third of it; in the second week, he spends a quarter of what he has left. How much money does he have left to finish the month?
train