A 96-page picture book, I have read (3/4). How many pages are left?
一本96页的画册，已经看了(3/4)．还剩多少页没看？
<gadget id="calculator">3 / 4</gadget>
<output>3/4 = around 0.75</output>

<gadget id="calculator">1 - (3/4)</gadget>
<output>1/4 = around 0.25</output>

<gadget id="calculator">96 * (1/4)</gadget>
<output>24</output>

<result>24</result>