One oil press machine (3/4) can extract (1/2) ton of oil in one hour, how many tons of oil can be extracted in one hour.
一台榨油机(3/4)小时榨油(1/2)吨，1小时可榨油多少吨．
<gadget id="calculator">1 / 2</gadget>
<output>1/2 = around 0.5</output>

<gadget id="calculator">3 / 4</gadget>
<output>3/4 = around 0.75</output>

<gadget id="calculator">(1/2) / (3/4)</gadget>
<output>2/3 = around 0.666667</output>

<result>2/3 = around 0.666667</result>