You have 32$ to spend on groceries.  You buy a loaf of bread for 3$, a candy bar for 2$, and 1/3 of whats left on a Turkey.  How much money do you have left?
32-3=
<gadget id="calculator">32-3</gadget>
<output>29</output>
29
29-2=
<gadget id="calculator">29-2</gadget>
<output>27</output>
27
27(1/3)=9
27-9=
<gadget id="calculator">27-9</gadget>
<output>18</output>
18$

<result>18</result>