Xiaohong has 30 books, less than Xiaoying (1/4), how many books does Xiaoying have? What is the correct column
小红有30本书，比小英少(1/4)，小英有多少本？正确列式是多少
<gadget id="calculator">1 / 4</gadget>
<output>1/4 = around 0.25</output>

<gadget id="calculator">1 - (1/4)</gadget>
<output>3/4 = around 0.75</output>

<gadget id="calculator">30 / (3/4)</gadget>
<output>40</output>

<result>40</result>