Zhao Ming reads a 72-page book and has already read it (8/9). How many pages have he read?
赵明看一本72页的书，已经看了(8/9)，已经看了多少页？
<gadget id="calculator">8 / 9</gadget>
<output>8/9 = around 0.888889</output>

<gadget id="calculator">72 * (8/9)</gadget>
<output>64</output>

<result>64</result>