Four adults with 32 teeth went to the dentist for a checkup after realizing they were having severe tooth pain. They were found to have different numbers of damaged teeth, and each person had some teeth removed. The first person had 1/4 of all his teeth removed, and the second person had 3/8 of his teeth removed, the third person had half of his teeth removed, while the last person only had 4 teeth removed. What's the total number of teeth removed at the dental clinic?
The first person had 1/4 of all his teeth removed, a total of 1/4*32 = 
<gadget id="calculator">1/4*32</gadget>
<output>8</output>
8 teeth.
The second person had 3/8 of his teeth removed, meaning 3/8*32 = 
<gadget id="calculator">3/8*32</gadget>
<output>12</output>
12 of his teeth were removed.
Together, the first and the second person had 12+8 = 
<gadget id="calculator">12+8</gadget>
<output>20</output>
20 teeth removed in total.
The third person had half of his teeth removed, which were 1/2*32 = 
<gadget id="calculator">32/2</gadget>
<output>16</output>
16 teeth.
The first three people had a total of 20+16 = 
<gadget id="calculator">20+16</gadget>
<output>36</output>
36 teeth removed from their mouth.
The last person only had 4 teeth removed, bringing the total number of teeth removed at the dentist clinic to be 36+4 = 
<gadget id="calculator">36+4</gadget>
<output>40</output>
40 teeth.

<result>40</result>