An oil press presses (1/4) tons of oil in (3/5) hours, how many tons of oil is squeezed per hour on average.
一台榨油机(3/5)小时榨油(1/4)吨，平均每小时榨油多少吨．
<gadget id="calculator">1 / 4</gadget>
<output>1/4 = around 0.25</output>

<gadget id="calculator">3 / 5</gadget>
<output>3/5 = around 0.6</output>

<gadget id="calculator">(1/4) / (3/5)</gadget>
<output>5/12 = around 0.416667</output>

<result>5/12 = around 0.416667</result>