It is known that Xiao Ming walks (14/15) kilometers in (3/10) hours, what is the formula for finding how many hours it takes Xiao Ming to walk 1 kilometer
已知小明(3/10)小时步行(14/15)千米，求小明步行1千米需多少小时的算式是多少
<gadget id="calculator">3 / 10</gadget>
<output>3/10 = around 0.3</output>

<gadget id="calculator">14 / 15</gadget>
<output>14/15 = around 0.933333</output>

<gadget id="calculator">(3/10) / (14/15)</gadget>
<output>9/28 = around 0.321429</output>

<result>9/28 = around 0.321429</result>