Wang Hong walks (7/10) kilometers in (1/3) hours, how many hours does it take her to walk 1 kilometer?
王红用(1/3)小时走(7/10)千米，她走1千米需多少小时．
<gadget id="calculator">1 / 3</gadget>
<output>1/3 = around 0.333333</output>

<gadget id="calculator">7 / 10</gadget>
<output>7/10 = around 0.7</output>

<gadget id="calculator">(1/3) / (7/10)</gadget>
<output>10/21 = around 0.47619</output>

<result>10/21 = around 0.47619</result>