Li Yan went from home to Erzhong Paradise at a speed of 5 kilometers per hour, and traveled the whole journey (2/7) in (2/5) hours. How far is Li Yan's home from the Children's Paradise?
李艳以每小时5千米的速度从家去儿重乐园，(2/5)小时行了全程的(2/7)．李艳家距儿童乐园有多远？
<gadget id="calculator">2 / 5</gadget>
<output>2/5 = around 0.4</output>

<gadget id="calculator">(2/5) / 7</gadget>
<output>2/35 = around 0.057143</output>

<gadget id="calculator">5 * (2/35)</gadget>
<output>2/7 = around 0.285714</output>

<gadget id="calculator">(2/5) / (2/7)</gadget>
<output>7/5 = around 1.4</output>

<gadget id="calculator">5 * (7/5)</gadget>
<output>7</output>

<result>7</result>