(1/4) of a number is 30, what is (5/8) of the reciprocal of this number.
一个数的(1/4)是30，这个数的倒数的(5/8)是多少．
<gadget id="calculator">1 / 4</gadget>
<output>1/4 = around 0.25</output>

<gadget id="calculator">30 / (1/4)</gadget>
<output>120</output>

<gadget id="calculator">1 / 120</gadget>
<output>1/120 = around 0.008333</output>

<gadget id="calculator">5 / 8</gadget>
<output>5/8 = around 0.625</output>

<gadget id="calculator">(1/120) * (5/8)</gadget>
<output>1/192 = around 0.005208</output>

<result>1/192 = around 0.005208</result>