A story book, Xiao Ling read (1/5) of the whole book on the first day, and there are 48 pages left. How many pages does this book have?
一本故事书，小玲第一天读了全书的(1/5)，还剩48页，这本书一共有多少页？
<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">48 / (4/5)</gadget>
<output>60</output>

<result>60</result>