Yang Yang read a story book, read (3/8) of the whole book on the first day, and (1/5) of the remaining pages on the second day. At this time there are 60 pages left unread. How many pages does this storybook have?
洋洋读一本故事书，第一天读了全书的(3/8)，第二天读了余下页数的(1/5)．这时还剩下60页没有读．这本故事书一共有多少页？
<gadget id="calculator">1 / 5</gadget>
<output>1/5 = around 0.2</output>

<gadget id="calculator">1 - (1/5)</gadget>
<output>4/5 = around 0.8</output>

<gadget id="calculator">3 / 8</gadget>
<output>3/8 = around 0.375</output>

<gadget id="calculator">1 - (3/8)</gadget>
<output>5/8 = around 0.625</output>

<gadget id="calculator">60 / (4/5) / (5/8)</gadget>
<output>120</output>

<result>120</result>