I read 33% of a book, how much of it is left
一本书看了它的33%，还剩它的多少
<gadget id="calculator">33 / 100</gadget>
<output>33/100 = around 0.33</output>

<gadget id="calculator">1 - (33/100)</gadget>
<output>67/100 = around 0.67</output>

<result>67/100 = around 0.67</result>