The number of story books is 60% more than the number of science books, and the number of science books is less than the number of story books.
故事书的本数比科技书的本数多60%，科技书的本数比故事书的本数少多少．
<gadget id="calculator">60 / 100</gadget>
<output>3/5 = around 0.6</output>

<gadget id="calculator">1 + (3/5)</gadget>
<output>8/5 = around 1.6</output>

<gadget id="calculator">1 / (8/5)</gadget>
<output>5/8 = around 0.625</output>

<result>5/8 = around 0.625</result>