A story book, I read (3/7) and there are 56 pages left, how many pages does this story book have?
一本故事书，看了(3/7)还有56页没有看，这本故事书一共有多少页？
<gadget id="calculator">3 / 7</gadget>
<output>3/7 = around 0.428571</output>

<gadget id="calculator">1 - (3/7)</gadget>
<output>4/7 = around 0.571429</output>

<gadget id="calculator">56 / (4/7)</gadget>
<output>98</output>

<result>98</result>