Wang Ping's room is 42 square meters, 75% larger than Li Dong's room. How many square meters is Li Dong's room?
王平的房间有42平方米，比李东的房间大75%，李东的房间是多少平方米？
<gadget id="calculator">75 / 100</gadget>
<output>3/4 = around 0.75</output>

<gadget id="calculator">1 + (3/4)</gadget>
<output>7/4 = around 1.75</output>

<gadget id="calculator">42 / (7/4)</gadget>
<output>24</output>

<result>24</result>